How to store graphics 2d as buffered image
Hi,
as per my requirement i need to generate a diagram and store it as a image. for that i am using bufferedimage class to create and draw the image by specifying the width and height. but some times the data migth be more than the height specified. is there any solution for this. please help me out
Hi,
Thanks for your quick reply. the diagram is not completly visible on the screen as the width of the bufferedimage is fixed.
for example
buffImg = new BufferedImage(width, height, BufferedImage.SCALE_SMOOTH);
Graphics2D imageGaph=buffImg.createGraphics();
drawTemplate(imageGaph);
drawValueLevers(imageGaph,105,160,width-32,height-60);
drawFooter(imageGaph);
gd.drawImage(buffImg,null,0,0);
in the first line i am creating a buffered image with fixed widht and height.by getting the graphics handler i am drawing the diagram. if the diagram height is more than the buffered image hight ,then it is not visible. please help me out..
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How to convert raster tiles into buffered images?
Abstract:
Using the code below i try to render four tiles of an image and then store them in different files. Problem: Only the tile 0,0 gets rendered correctly.
SunTileScheduler sts = new SunTileScheduler(4,0,0,0);
sts.scheduleTiles(img, new Point[]{
new Point(0,0)
, new Point(0,1)
, new Point(1,0)
, new Point(1,1)
}, new TileComputationListener[]{
new TileComputationListener() {
public void tileComputed(Object obj, TileRequest[] atilerequest, PlanarImage planarimage, int i, int j, Raster raster)
Hello
I am using JAI to create a RenderedOp object named img and then call the TileScheduler to render me four tiles. Appearantly the scheduler tiles in 512x512, so the Point Array should render the pixels from 0,0 to 1024, 1024 spread accross four tiles.
Unfortunatly only the tile 0,0 (-> pixels 0,0,511,511) gets rendered correctly, the other three are black and take 4725 bytes each in the file system. Tile 0,0 takes ~95k
The TileComputationListener returns a Raster object that i convert into a BufferedImage:
BufferedImage image = new BufferedImage(raster.getWidth(),raster.getHeight(), BufferedImage.TYPE_INT_RGB);
image.setData(raster);After that i write the image into the file system
String fileName = String.format("d:/temp/tile/tiles_%s_%s.jpg", i,j);
try
FileOutputStream stream = new FileOutputStream(fileName);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(stream);
JPEGEncodeParam encodeParam = encoder.getDefaultJPEGEncodeParam(image);
encodeParam.setQuality(1.0, true);
encoder.setJPEGEncodeParam(encodeParam);
encoder.encode(image);
stream.flush();
stream.close();Tiles seem to be problematic because this constructor
public BufferedImage (ColorModel cm,
WritableRaster raster,
boolean isRasterPremultiplied,
Hashtable<?,?> properties) {rejects Rasters whose tile index is != 0,0. So it all boils down to this:
How do i convert a Raster objects into a BufferedImage?
Regards
MarkWritableRaster wr = (WritableRaster) raster;
WritableRaster newRaster = wr.createWritableTranslatedChild(0,0);
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How to store images in database
Can anyone help me with storing images in database, problem with me is that i m designing a site in which u need to display product information and administrator can add and delete products. now how can i make that administrator can add a image to database, Can u tell me that can image itself can be stored in a database or just the path of it can be stored in a database.
Waiting for quick reply,
thankscan u plss tell me how to store the path of the image in database , do we just have to mention it as varchar field and write the path thats it or do we have to do anything else . and pls also tellme when do we have to set connections ? only at the time to retrieving the images since we are not uploading the image sin DB just mentioning their path . pls reply ASAP
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Hello there.
Ill try to explain this the simplest way possible. Lets say i have a map, and sprites on that map. The map by itself its static, it will only move along as a camera move. Im calling, methods directly in Paint from my applet to draw the map, and draw the sprites. What i am willing to do it, Drawing the map into a separate Graphics or a BufferedImage, so i can draw the map on the final graphics. This would also make i draw the map only once, witch would be good as well, cause actually map drawing is on a loop.
Thanx in advance for any help.
For a better undestanding:
I have a map, and i have sprites, and a window class. Each is drawd by a different class. My Paint method is something similar to this:
public void paint(Graphics g) {
MapClass.drawMap(g);
SpriteClass.drawSprites(g);
WindowClass.drawWindows(g);
}now, this makes me draw the map on the game loop, and if i wanted to move the map around i would have to translate the graphics to move only the map and sprites. However, i belive this could be easyer if i have a separate map for example, and i could use my paint method like this:
public void paint(Graphics g) {
g.drawImage(MapClass.getMap(), camX, camY, screenX, screenY);
g.drawImage(SpriteClass.getSprites(), camX, camY, screenX, screenY);
WindowClass.drawWindows(g);
}So i could control camera movements easy, and i can save the map into memory so i dont have to draw it over and over again. Ive googled into how to create a buffered image from a graphics but couldnt do it. Lets say i have this method doing the paint ( a simple one )
// class Sprites
public void drawSprites(Graphics g) {
g.drawImage( sprite, spriteX, spriteY, sizeX, sizeY);
}Now, i would have something like that
public BufferedImage getSprites() {
Graphics g = new Graphics();
g.drawImage( sprite, spriteX, spriteY, sizeX, sizeY);
BufferedImage img = new BufferedImage(parms, parms2);
img = g; // ?
return img;
}So i could just paint this img on the main graphics, and move it easy, and pheraphs store it in memory.
Thanx for any kind of help.
[]´s Zidencrosspost
Please only post your message in 1 forum, your question is anwered there. Graphics to BufferedImage ? -
How to store an image into MySQL db using BlazeDS and Hibernate?
Hi!
I am using Flash Builder 4.6, BlazeDS, and Hibernate. How to store a webcam snapshot into the MySql Database. I stored Form Items by using RemoteObject into the database. But I failed to store webcam snapshot. I captured that image on Panel component.I converted that image to ByteArray. Now I want to save that image into the database. Please help me in this regard.
thanks in advance.
Here the Code:
VisitorEntryForm.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:TitleWindow
xmlns:mx="http://www.adobe.com/2006/mxml"
xmlns:vo="com.visitor.vo.*"
width="600"
height="300"
defaultButton="{submitButton}"
showCloseButton="true"
creationComplete="creationCompleteHandler();"
close="PopUpManager.removePopUp(this);"
title="Visitor Entry Form" xmlns:text="flash.text.*">
<mx:RemoteObject id="saveService" destination="visitorService" result="handleSaveResult(event)" fault="handleFault(event)" showBusyCursor="true" />
<vo:Visitor id="visitor"
vType="{vTypeField.text}"
vPurpose="{vPurposeField.text}"
vName="{vNameField.text}"
vAddress="{vAddressField.text}"
cPerson="{cPersonField.text}"
cAddress="{cAddressField.text}"
/>
<mx:Script>
<![CDATA[
import mx.managers.PopUpManager;
import flash.media.Camera;
import com.visitor.vo.WebCam;
import com.visitor.vo.Base64;
import mx.core.UIComponent;
import mx.graphics.codec.JPEGEncoder;
import mx.controls.Alert;
import mx.containers.Canvas;
import mx.rpc.events.ResultEvent;
import mx.rpc.events.FaultEvent;
import mx.events.ValidationResultEvent;
import mx.validators.Validator;
[Bindable]
private var webCam: com.visitor.vo.WebCam;
[Bindable]
private var message:String;
[Bindable]
private var formIsValid:Boolean = false;
[Bindable]
public var formIsEmpty:Boolean;
private var focussedFormControl:DisplayObject;
private function handleSaveResult(ev:ResultEvent):void {
clearFormHandler();
validateForm(ev);
Alert.show("Visitor successfully created/updated.", "Information", Alert.OK, null, null, null, Alert.OK);
// Reload the list.
parentApplication.listConsultants.loaderService.getConsultants();
PopUpManager.removePopUp(this);
private function handleFault(ev:FaultEvent):void {
message = "Error: " + ev.fault.faultCode + " \n "
+ "Detail: " + ev.fault.faultDetail + " \n "
+ "Message: " + ev.fault.faultString;
public function saveVisitor():void {
saveService.addUpdateVisitor(visitor);
private function creationCompleteHandler():void {
init();
PopUpManager.centerPopUp(this);
resetFocus();
private function resetFocus():void {
focusManager.setFocus(vTypeField);
public function validateForm(event:Event):void {
focussedFormControl = event.target as DisplayObject;
formIsValid = true;
// Check if form is empty
formIsEmpty = (vTypeField.text == "" && vPurposeField.text == "" && vNameField.text == "" && vAddressField.text == "" && cPersonField.text == "" && cAddressField.text == "");
validate(vTypeValidator);
validate(vPurposeValidator);
validate(vNameValidator);
validate(vAddressValidator);
validate(cPersonValidator);
validate(cAddressValidator);
private function validate(validator:Validator):Boolean {
var validatorSource:DisplayObject = validator.source as DisplayObject;
var suppressEvents:Boolean = (validatorSource != focussedFormControl);
var event:ValidationResultEvent = validator.validate(null, suppressEvents);
var currentControlIsValid:Boolean = (event.type == ValidationResultEvent.VALID);
formIsValid = formIsValid && currentControlIsValid;
return currentControlIsValid;
private function clearFormHandler():void {
// Clear all input fields.
vTypeField.text = "";
vPurposeField.text = "";
vNameField.text = "";
vAddressField.text = "";
cPersonField.text = "";
cAddressField.text = "";
message = "";
// Clear validation error messages.
vTypeField.errorString = "";
vPurposeField.errorString = "";
vNameField.errorString = "";
vAddressField.errorString = "";
cPersonField.errorString = "";
cAddressField.errorString = "";
formIsEmpty = true;
formIsValid = false;
resetFocus();
private function init():void {
webCam = new WebCam(97,97);
var ref:UIComponent = new UIComponent();
preview.removeAllChildren();
preview.addChild(ref);
ref.addChild(webCam);
private function takeSnapshot():void {
imageViewer.visible = true;
imageViewer.width = preview.width;
imageViewer.height = preview.height;
var uiComponent : UIComponent = new UIComponent();
uiComponent.width = webCam.width;
uiComponent.height = webCam.height;
var photoData:Bitmap = webCam.getSnapshot();
var photoBitmap:BitmapData = photoData.bitmapData;
uiComponent.addChild(photoData);
imageViewer.removeAllChildren();
imageViewer.addChild(uiComponent);
private function uploadSnapshot():void
if (imageViewer.getChildren().length > 0)
var uic:UIComponent = imageViewer.getChildAt(0) as UIComponent;
var bitmap:Bitmap = uic.getChildAt(0) as Bitmap;
var jpgEncoder:JPEGEncoder = new JPEGEncoder(75);
var jpgBytes:ByteArray = jpgEncoder.encode(bitmap.bitmapData);
private function deleteSnapshot():void
imageViewer.removeAllChildren();
]]>
</mx:Script>
<mx:StringValidator id="vTypeValidator" source="{vTypeField}" property="text" minLength="2" required="true" />
<mx:StringValidator id="vPurposeValidator" source="{vPurposeField}" property="text" minLength="2" required="true" />
<mx:StringValidator id="vNameValidator" source="{vNameField}" property="text" minLength="2" required="true" />
<mx:StringValidator id="vAddressValidator" source="{vAddressField}" property="text" minLength="5" required="true" />
<mx:StringValidator id="cPersonValidator" source="{cPersonField}" property="text" minLength="2" required="true" />
<mx:StringValidator id="cAddressValidator" source="{cAddressField}" property="text" minLength="5" required="true" />
<mx:Grid width="575" height="211">
<mx:GridRow width="575" height="211">
<mx:GridItem width="301" height="235">
<mx:Form width="301" height="208">
<mx:FormItem label="Visitor's Type">
<mx:ComboBox id="vTypeField" text="{visitor.vType}" change="validateForm(event);" editable="true">
<mx:Array>
<mx:String></mx:String>
<mx:String>Contractor</mx:String>
<mx:String>Supplier</mx:String>
<mx:String>Transporter</mx:String>
<mx:String>Plant</mx:String>
<mx:String>Non-Plant</mx:String>
</mx:Array>
</mx:ComboBox>
</mx:FormItem>
<mx:FormItem label="Visit Purpose">
<mx:ComboBox id="vPurposeField" text="{visitor.vPurpose}" change="validateForm(event);" editable="true">
<mx:Array>
<mx:String></mx:String>
<mx:String>Official</mx:String>
<mx:String>Personal</mx:String>
</mx:Array>
</mx:ComboBox>
</mx:FormItem>
<mx:FormItem label="Visitor's Name">
<mx:TextInput id="vNameField" text="{visitor.vName}" change="validateForm(event);"/>
</mx:FormItem>
<mx:FormItem label="Address">
<mx:TextInput id="vAddressField" text="{visitor.vAddress}" change="validateForm(event);"/>
</mx:FormItem>
<mx:FormItem label="Contact Person">
<mx:TextInput id="cPersonField" text="{visitor.cPerson}" change="validateForm(event);"/>
</mx:FormItem>
<mx:FormItem label="Address">
<mx:TextInput id="cAddressField" text="{visitor.cAddress}" change="validateForm(event);"/>
</mx:FormItem>
</mx:Form>
</mx:GridItem>
<mx:GridItem width="264" height="193">
<mx:Grid width="241" height="206">
<mx:GridRow width="100%" height="100%">
<mx:GridItem width="100%" height="100%" horizontalAlign="center" verticalAlign="middle">
<mx:Panel width="100" height="132" title="Snap" id="preview" layout="absolute"/>
</mx:GridItem>
<mx:GridItem width="100%" height="100%" horizontalAlign="center" verticalAlign="middle">
<mx:Panel width="100" height="132" title="Preview" id="imageViewer" layout="absolute"/>
</mx:GridItem>
</mx:GridRow>
<mx:GridRow width="100%" height="27" >
<mx:GridItem width="100%" height="100%" horizontalAlign="center">
<mx:Button id="snapshot" x="2" width="106" height="27" label="Snap"
click="takeSnapshot();"/>
</mx:GridItem>
<mx:GridItem width="100%" height="100%" horizontalAlign="center">
<mx:Button id="deleteButton" x="1" width="106" height="27" label="Delete"
click="deleteSnapshot();"/>
</mx:GridItem>
</mx:GridRow>
</mx:Grid>
</mx:GridItem>
</mx:GridRow>
</mx:Grid>
<mx:ControlBar height="40" horizontalAlign="center">
<mx:Button label="Save Visitor" id="submitButton" enabled="{formIsValid}" click="saveVisitor();" />
<mx:Button label="Clear form" enabled="{!formIsEmpty}" click="clearFormHandler();" />
<mx:Button label="Cancel" click="PopUpManager.removePopUp(this);"/>
<mx:Label width="211" id="state"/>
</mx:ControlBar>
<mx:Text text="{message}" fontWeight="bold" width="300"/>
</mx:TitleWindow>
ListVisitors.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:Panel
xmlns:mx="http://www.adobe.com/2006/mxml"
xmlns:view="com.visitor.view.*"
width="100%"
height="100%"
title="Visitor Management System - Found {visitorRecords} visitors."
creationComplete="loadVisitors();">
<mx:RemoteObject id="loaderService" destination="visitorService" result="handleLoadResult(event)" fault="handleFault(event)" showBusyCursor="true" />
<mx:RemoteObject id="deleteService" destination="visitorService" result="handleDeleteResult(event)" fault="handleFault(event)" showBusyCursor="true" />
<mx:Script>
<![CDATA[
import com.visitor.vo.Visitor;
import mx.controls.Alert;
import mx.managers.PopUpManager;
import mx.containers.TitleWindow;
import mx.collections.ArrayCollection;
import mx.rpc.events.ResultEvent;
import mx.rpc.events.FaultEvent;
[Bindable]
private var message:String;
[Bindable]
private var visitors:ArrayCollection = new ArrayCollection();
[Bindable]
private var visitorRecords:int = 0;
public function loadVisitors():void {
loaderService.getVisitors();
private function deleteVisitor():void {
if(dataGrid.selectedItem != null) {
var selectedItem:Visitor = dataGrid.selectedItem as Visitor;
deleteService.deleteVisitor(selectedItem.visitorId);
private function createVisitor():void {
var titleWindow:VisitorEntryForm = VisitorEntryForm(PopUpManager.createPopUp(this, VisitorEntryForm, true));
titleWindow.setStyle("borderAlpha", 0.9);
titleWindow.formIsEmpty = true;
private function updateVisitor():void {
var titleWindow:VisitorEntryForm = VisitorEntryForm(PopUpManager.createPopUp(this, VisitorEntryForm, true));
titleWindow.setStyle("borderAlpha", 0.9);
titleWindow.visitor = dataGrid.selectedItem as Visitor;
titleWindow.formIsEmpty = false;
private function handleLoadResult(ev:ResultEvent):void {
visitors = ev.result as ArrayCollection;
visitorRecords = visitors.length;
private function handleDeleteResult(ev:ResultEvent):void {
Alert.show("The visitor has been deleted.", "Information", Alert.OK, null, null, null, Alert.OK);
loadVisitors();
private function handleFault(ev:FaultEvent):void {
message = "Error: "
+ ev.fault.faultCode + " - "
+ ev.fault.faultDetail + " - "
+ ev.fault.faultString;
]]>
</mx:Script>
<mx:VBox width="100%" height="100%">
<mx:Label text="{message}" fontWeight="bold" includeInLayout="false" />
<mx:DataGrid
id="dataGrid"
width="100%"
height="100%"
dataProvider="{visitors}"
doubleClickEnabled="true"
doubleClick="updateVisitor()" >
<mx:columns>
<mx:DataGridColumn dataField="visitorId" headerText="Visitor ID" width="100"/>
<mx:DataGridColumn dataField="vType" headerText="Visitor's Type" />
<mx:DataGridColumn dataField="vPurpose" headerText="Visit Purpose" />
<mx:DataGridColumn dataField="vName" headerText="Visitor's Name" />
<mx:DataGridColumn dataField="vAddress" headerText="Visitor's Address" />
<mx:DataGridColumn dataField="cPerson" headerText="Contact Person" />
<mx:DataGridColumn dataField="cAddress" headerText="Contact Address" />
<mx:DataGridColumn dataField="timeIn" headerText="Time-In" />
<mx:DataGridColumn dataField="timeOut" headerText="Time-Out" />
<mx:DataGridColumn dataField="vPhoto" headerText="Visitor's Photo" />
</mx:columns>
</mx:DataGrid>
<mx:ControlBar horizontalAlign="center">
<mx:Button label="Create Visitor" click="createVisitor()" toolTip="Create a new visitor and store it in the database." />
<mx:Button label="Update Visitor" click="updateVisitor()" enabled="{dataGrid.selectedItem}" toolTip="Update an existing database visitor." />
<mx:Button label="Delete Visitor" click="deleteVisitor()" enabled="{dataGrid.selectedItem}" toolTip="Delete the visitor from the database." />
<mx:Button label="Reload Data" click="loadVisitors()" toolTip="Reload the visitor list from the database." />
</mx:ControlBar>
</mx:VBox>
</mx:Panel>
Visitor.as
package com.visitor.vo
import mx.controls.Image;
import spark.primitives.BitmapImage;
[Bindable]
[RemoteClass(alias="com.visitor.Visitor")]
public class Visitor
public function Visitor()
public var visitorId:Number;
public var vType:String;
public var vPurpose:String;
public var vName:String;
public var vAddress:String;
public var cPerson:String;
public var cAddress:String;
public var timeIn:Date;
public var timeOut:Date;
public var vPhoto: Image;
Visitor.java
package com.visitor;
import java.sql.Blob;
import java.sql.Timestamp;
import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.Table;
import org.hibernate.annotations.Index;
@Entity
@Table(name = "visitors")
@NamedQueries( {
@NamedQuery(name = "visitors.findAll", query = "from Visitor"),
@NamedQuery(name = "visitors.byId", query = "select v from Visitor v where v.visitorId= :visitorId") })
public class Visitor {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "visitorId", nullable = false)
private Long visitorId;
@Basic
@Index(name = "vType_idx_1")
@Column(name = "vType", nullable = true, unique = false)
private String vType;
@Basic
@Column(name = "vPurpose", nullable = true, unique = false)
private String vPurpose;
@Basic
@Column(name = "vName", nullable = true, unique = false)
private String vName;
@Basic
@Column(name = "vAddress", nullable = true, unique = false)
private String vAddress;
@Basic
@Column(name = "cPerson", nullable = true, unique = false)
private String cPerson;
@Basic
@Column(name = "cAddress", nullable = true, unique = false)
private String cAddress;
@Basic
@Column(name = "timeIn", nullable = false, unique = false)
private Timestamp timeIn;
@Basic
@Column(name = "timeOut", nullable = true, unique = false)
private Timestamp timeOut;
@Basic
@Column(name = "vPhoto", nullable = true, unique = false)
private Blob vPhoto;
public Visitor() {
super();
public Long getVisitorId() {
return visitorId;
public void setVisitorId(Long visitorId) {
this.visitorId = visitorId;
public String getvType() {
return vType;
public void setvType(String vType) {
this.vType = vType;
public String getvPurpose() {
return vPurpose;
public void setvPurpose(String vPurpose) {
this.vPurpose = vPurpose;
public String getvName() {
return vName;
public void setvName(String vName) {
this.vName = vName;
public String getvAddress() {
return vAddress;
public void setvAddress(String vAddress) {
this.vAddress = vAddress;
public String getcPerson() {
return cPerson;
public void setcPerson(String cPerson) {
this.cPerson = cPerson;
public String getcAddress() {
return cAddress;
public void setcAddress(String cAddress) {
this.cAddress = cAddress;
public Timestamp getTimeIn() {
return timeIn;
public void setTimeIn(Timestamp timeIn) {
this.timeIn = timeIn;
public Timestamp getTimeOut() {
return timeOut;
public void setTimeOut(Timestamp timeOut) {
this.timeOut = timeOut;
public Blob getvPhoto() {
return vPhoto;
public void setvPhoto(Blob vPhoto) {
this.vPhoto = vPhoto;
VisitorService.java
package com.visitor;
import java.sql.Timestamp;
import java.util.Date;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.EntityTransaction;
import javax.persistence.Persistence;
import javax.persistence.Query;
import org.apache.log4j.Logger;
public class VisitorService {
private static final String PERSISTENCE_UNIT = "visitor_db";
private static Logger logger = Logger.getLogger(VisitorService.class);
public VisitorService() {
super();
public List<Visitor> getvisitors() {
logger.debug("** getVisitors called...");
EntityManagerFactory entityManagerFactory = Persistence
.createEntityManagerFactory(PERSISTENCE_UNIT);
EntityManager em = entityManagerFactory.createEntityManager();
Query findAllQuery = em.createNamedQuery("visitors.findAll");
List<Visitor> visitors = findAllQuery.getResultList();
if (visitors != null)
logger.debug("** Found " + visitors.size() + " records:");
return visitors;
public void addUpdateVisitor(Visitor visitor) throws Exception {
logger.debug("** addUpdateVisitor called...");
EntityManagerFactory emf = Persistence
.createEntityManagerFactory(PERSISTENCE_UNIT);
EntityManager em = emf.createEntityManager();
// When passing Boolean and Number values from the Flash client to a
// Java object, Java interprets null values as the default values for
// primitive types; for example, 0 for double, float, long, int, short,
// byte.
if (visitor.getVisitorId() == null || visitor.getVisitorId() == 0) {
// New consultant is created
visitor.setVisitorId(null);
visitor.setTimeIn(new Timestamp(new Date().getTime()));
} else {
visitor.setTimeOut(new Timestamp(new Date().getTime()));
// Existing consultant is updated - do nothing.
EntityTransaction tx = em.getTransaction();
tx.begin();
try {
em.merge(visitor);
tx.commit();
} catch (Exception e) {
logger.error("** Error: " + e.getMessage());
tx.rollback();
throw new Exception(e.getMessage());
} finally {
logger.info("** Closing Entity Manager.");
em.close();
public void deleteVisitor(Long visitorId) {
logger.debug("** deleteVisitor called...");
EntityManagerFactory emf = Persistence
.createEntityManagerFactory(PERSISTENCE_UNIT);
EntityManager em = emf.createEntityManager();
Query q = em.createNamedQuery("visitors.byId");
q.setParameter("visitorId", visitorId);
Visitor visitor = (Visitor) q.getSingleResult();
if (visitor != null) {
EntityTransaction tx = em.getTransaction();
tx.begin();
try {
em.remove(visitor);
tx.commit();
} catch (Exception e) {
logger.error("** Error: " + e.getMessage());
tx.rollback();
} finally {
logger.info("** Closing Entity Manager.");
em.close();
remoting-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<service id="remoting-service" class="flex.messaging.services.RemotingService">
<adapters>
<adapter-definition id="java-object"
class="flex.messaging.services.remoting.adapters.JavaAdapter"
default="true" />
</adapters>
<default-channels>
<channel ref="my-amf" />
</default-channels>
<!-- ADC Demo application -->
<destination id="visitorService">
<properties>
<source>com.visitor.VisitorService</source>
</properties>
</destination>
</service>Hi!
I am using Flash Builder 4.6, BlazeDS, and Hibernate. How to store a webcam snapshot into the MySql Database. I stored Form Items by using RemoteObject into the database. But I failed to store webcam snapshot. I captured that image on Panel component.I converted that image to ByteArray. Now I want to save that image into the database. Please help me in this regard.
thanks in advance.
Here the Code:
VisitorEntryForm.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:TitleWindow
xmlns:mx="http://www.adobe.com/2006/mxml"
xmlns:vo="com.visitor.vo.*"
width="600"
height="300"
defaultButton="{submitButton}"
showCloseButton="true"
creationComplete="creationCompleteHandler();"
close="PopUpManager.removePopUp(this);"
title="Visitor Entry Form" xmlns:text="flash.text.*">
<mx:RemoteObject id="saveService" destination="visitorService" result="handleSaveResult(event)" fault="handleFault(event)" showBusyCursor="true" />
<vo:Visitor id="visitor"
vType="{vTypeField.text}"
vPurpose="{vPurposeField.text}"
vName="{vNameField.text}"
vAddress="{vAddressField.text}"
cPerson="{cPersonField.text}"
cAddress="{cAddressField.text}"
/>
<mx:Script>
<![CDATA[
import mx.managers.PopUpManager;
import flash.media.Camera;
import com.visitor.vo.WebCam;
import com.visitor.vo.Base64;
import mx.core.UIComponent;
import mx.graphics.codec.JPEGEncoder;
import mx.controls.Alert;
import mx.containers.Canvas;
import mx.rpc.events.ResultEvent;
import mx.rpc.events.FaultEvent;
import mx.events.ValidationResultEvent;
import mx.validators.Validator;
[Bindable]
private var webCam: com.visitor.vo.WebCam;
[Bindable]
private var message:String;
[Bindable]
private var formIsValid:Boolean = false;
[Bindable]
public var formIsEmpty:Boolean;
private var focussedFormControl:DisplayObject;
private function handleSaveResult(ev:ResultEvent):void {
clearFormHandler();
validateForm(ev);
Alert.show("Visitor successfully created/updated.", "Information", Alert.OK, null, null, null, Alert.OK);
// Reload the list.
parentApplication.listConsultants.loaderService.getConsultants();
PopUpManager.removePopUp(this);
private function handleFault(ev:FaultEvent):void {
message = "Error: " + ev.fault.faultCode + " \n "
+ "Detail: " + ev.fault.faultDetail + " \n "
+ "Message: " + ev.fault.faultString;
public function saveVisitor():void {
saveService.addUpdateVisitor(visitor);
private function creationCompleteHandler():void {
init();
PopUpManager.centerPopUp(this);
resetFocus();
private function resetFocus():void {
focusManager.setFocus(vTypeField);
public function validateForm(event:Event):void {
focussedFormControl = event.target as DisplayObject;
formIsValid = true;
// Check if form is empty
formIsEmpty = (vTypeField.text == "" && vPurposeField.text == "" && vNameField.text == "" && vAddressField.text == "" && cPersonField.text == "" && cAddressField.text == "");
validate(vTypeValidator);
validate(vPurposeValidator);
validate(vNameValidator);
validate(vAddressValidator);
validate(cPersonValidator);
validate(cAddressValidator);
private function validate(validator:Validator):Boolean {
var validatorSource:DisplayObject = validator.source as DisplayObject;
var suppressEvents:Boolean = (validatorSource != focussedFormControl);
var event:ValidationResultEvent = validator.validate(null, suppressEvents);
var currentControlIsValid:Boolean = (event.type == ValidationResultEvent.VALID);
formIsValid = formIsValid && currentControlIsValid;
return currentControlIsValid;
private function clearFormHandler():void {
// Clear all input fields.
vTypeField.text = "";
vPurposeField.text = "";
vNameField.text = "";
vAddressField.text = "";
cPersonField.text = "";
cAddressField.text = "";
message = "";
// Clear validation error messages.
vTypeField.errorString = "";
vPurposeField.errorString = "";
vNameField.errorString = "";
vAddressField.errorString = "";
cPersonField.errorString = "";
cAddressField.errorString = "";
formIsEmpty = true;
formIsValid = false;
resetFocus();
private function init():void {
webCam = new WebCam(97,97);
var ref:UIComponent = new UIComponent();
preview.removeAllChildren();
preview.addChild(ref);
ref.addChild(webCam);
private function takeSnapshot():void {
imageViewer.visible = true;
imageViewer.width = preview.width;
imageViewer.height = preview.height;
var uiComponent : UIComponent = new UIComponent();
uiComponent.width = webCam.width;
uiComponent.height = webCam.height;
var photoData:Bitmap = webCam.getSnapshot();
var photoBitmap:BitmapData = photoData.bitmapData;
uiComponent.addChild(photoData);
imageViewer.removeAllChildren();
imageViewer.addChild(uiComponent);
private function uploadSnapshot():void
if (imageViewer.getChildren().length > 0)
var uic:UIComponent = imageViewer.getChildAt(0) as UIComponent;
var bitmap:Bitmap = uic.getChildAt(0) as Bitmap;
var jpgEncoder:JPEGEncoder = new JPEGEncoder(75);
var jpgBytes:ByteArray = jpgEncoder.encode(bitmap.bitmapData);
private function deleteSnapshot():void
imageViewer.removeAllChildren();
]]>
</mx:Script>
<mx:StringValidator id="vTypeValidator" source="{vTypeField}" property="text" minLength="2" required="true" />
<mx:StringValidator id="vPurposeValidator" source="{vPurposeField}" property="text" minLength="2" required="true" />
<mx:StringValidator id="vNameValidator" source="{vNameField}" property="text" minLength="2" required="true" />
<mx:StringValidator id="vAddressValidator" source="{vAddressField}" property="text" minLength="5" required="true" />
<mx:StringValidator id="cPersonValidator" source="{cPersonField}" property="text" minLength="2" required="true" />
<mx:StringValidator id="cAddressValidator" source="{cAddressField}" property="text" minLength="5" required="true" />
<mx:Grid width="575" height="211">
<mx:GridRow width="575" height="211">
<mx:GridItem width="301" height="235">
<mx:Form width="301" height="208">
<mx:FormItem label="Visitor's Type">
<mx:ComboBox id="vTypeField" text="{visitor.vType}" change="validateForm(event);" editable="true">
<mx:Array>
<mx:String></mx:String>
<mx:String>Contractor</mx:String>
<mx:String>Supplier</mx:String>
<mx:String>Transporter</mx:String>
<mx:String>Plant</mx:String>
<mx:String>Non-Plant</mx:String>
</mx:Array>
</mx:ComboBox>
</mx:FormItem>
<mx:FormItem label="Visit Purpose">
<mx:ComboBox id="vPurposeField" text="{visitor.vPurpose}" change="validateForm(event);" editable="true">
<mx:Array>
<mx:String></mx:String>
<mx:String>Official</mx:String>
<mx:String>Personal</mx:String>
</mx:Array>
</mx:ComboBox>
</mx:FormItem>
<mx:FormItem label="Visitor's Name">
<mx:TextInput id="vNameField" text="{visitor.vName}" change="validateForm(event);"/>
</mx:FormItem>
<mx:FormItem label="Address">
<mx:TextInput id="vAddressField" text="{visitor.vAddress}" change="validateForm(event);"/>
</mx:FormItem>
<mx:FormItem label="Contact Person">
<mx:TextInput id="cPersonField" text="{visitor.cPerson}" change="validateForm(event);"/>
</mx:FormItem>
<mx:FormItem label="Address">
<mx:TextInput id="cAddressField" text="{visitor.cAddress}" change="validateForm(event);"/>
</mx:FormItem>
</mx:Form>
</mx:GridItem>
<mx:GridItem width="264" height="193">
<mx:Grid width="241" height="206">
<mx:GridRow width="100%" height="100%">
<mx:GridItem width="100%" height="100%" horizontalAlign="center" verticalAlign="middle">
<mx:Panel width="100" height="132" title="Snap" id="preview" layout="absolute"/>
</mx:GridItem>
<mx:GridItem width="100%" height="100%" horizontalAlign="center" verticalAlign="middle">
<mx:Panel width="100" height="132" title="Preview" id="imageViewer" layout="absolute"/>
</mx:GridItem>
</mx:GridRow>
<mx:GridRow width="100%" height="27" >
<mx:GridItem width="100%" height="100%" horizontalAlign="center">
<mx:Button id="snapshot" x="2" width="106" height="27" label="Snap"
click="takeSnapshot();"/>
</mx:GridItem>
<mx:GridItem width="100%" height="100%" horizontalAlign="center">
<mx:Button id="deleteButton" x="1" width="106" height="27" label="Delete"
click="deleteSnapshot();"/>
</mx:GridItem>
</mx:GridRow>
</mx:Grid>
</mx:GridItem>
</mx:GridRow>
</mx:Grid>
<mx:ControlBar height="40" horizontalAlign="center">
<mx:Button label="Save Visitor" id="submitButton" enabled="{formIsValid}" click="saveVisitor();" />
<mx:Button label="Clear form" enabled="{!formIsEmpty}" click="clearFormHandler();" />
<mx:Button label="Cancel" click="PopUpManager.removePopUp(this);"/>
<mx:Label width="211" id="state"/>
</mx:ControlBar>
<mx:Text text="{message}" fontWeight="bold" width="300"/>
</mx:TitleWindow>
ListVisitors.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:Panel
xmlns:mx="http://www.adobe.com/2006/mxml"
xmlns:view="com.visitor.view.*"
width="100%"
height="100%"
title="Visitor Management System - Found {visitorRecords} visitors."
creationComplete="loadVisitors();">
<mx:RemoteObject id="loaderService" destination="visitorService" result="handleLoadResult(event)" fault="handleFault(event)" showBusyCursor="true" />
<mx:RemoteObject id="deleteService" destination="visitorService" result="handleDeleteResult(event)" fault="handleFault(event)" showBusyCursor="true" />
<mx:Script>
<![CDATA[
import com.visitor.vo.Visitor;
import mx.controls.Alert;
import mx.managers.PopUpManager;
import mx.containers.TitleWindow;
import mx.collections.ArrayCollection;
import mx.rpc.events.ResultEvent;
import mx.rpc.events.FaultEvent;
[Bindable]
private var message:String;
[Bindable]
private var visitors:ArrayCollection = new ArrayCollection();
[Bindable]
private var visitorRecords:int = 0;
public function loadVisitors():void {
loaderService.getVisitors();
private function deleteVisitor():void {
if(dataGrid.selectedItem != null) {
var selectedItem:Visitor = dataGrid.selectedItem as Visitor;
deleteService.deleteVisitor(selectedItem.visitorId);
private function createVisitor():void {
var titleWindow:VisitorEntryForm = VisitorEntryForm(PopUpManager.createPopUp(this, VisitorEntryForm, true));
titleWindow.setStyle("borderAlpha", 0.9);
titleWindow.formIsEmpty = true;
private function updateVisitor():void {
var titleWindow:VisitorEntryForm = VisitorEntryForm(PopUpManager.createPopUp(this, VisitorEntryForm, true));
titleWindow.setStyle("borderAlpha", 0.9);
titleWindow.visitor = dataGrid.selectedItem as Visitor;
titleWindow.formIsEmpty = false;
private function handleLoadResult(ev:ResultEvent):void {
visitors = ev.result as ArrayCollection;
visitorRecords = visitors.length;
private function handleDeleteResult(ev:ResultEvent):void {
Alert.show("The visitor has been deleted.", "Information", Alert.OK, null, null, null, Alert.OK);
loadVisitors();
private function handleFault(ev:FaultEvent):void {
message = "Error: "
+ ev.fault.faultCode + " - "
+ ev.fault.faultDetail + " - "
+ ev.fault.faultString;
]]>
</mx:Script>
<mx:VBox width="100%" height="100%">
<mx:Label text="{message}" fontWeight="bold" includeInLayout="false" />
<mx:DataGrid
id="dataGrid"
width="100%"
height="100%"
dataProvider="{visitors}"
doubleClickEnabled="true"
doubleClick="updateVisitor()" >
<mx:columns>
<mx:DataGridColumn dataField="visitorId" headerText="Visitor ID" width="100"/>
<mx:DataGridColumn dataField="vType" headerText="Visitor's Type" />
<mx:DataGridColumn dataField="vPurpose" headerText="Visit Purpose" />
<mx:DataGridColumn dataField="vName" headerText="Visitor's Name" />
<mx:DataGridColumn dataField="vAddress" headerText="Visitor's Address" />
<mx:DataGridColumn dataField="cPerson" headerText="Contact Person" />
<mx:DataGridColumn dataField="cAddress" headerText="Contact Address" />
<mx:DataGridColumn dataField="timeIn" headerText="Time-In" />
<mx:DataGridColumn dataField="timeOut" headerText="Time-Out" />
<mx:DataGridColumn dataField="vPhoto" headerText="Visitor's Photo" />
</mx:columns>
</mx:DataGrid>
<mx:ControlBar horizontalAlign="center">
<mx:Button label="Create Visitor" click="createVisitor()" toolTip="Create a new visitor and store it in the database." />
<mx:Button label="Update Visitor" click="updateVisitor()" enabled="{dataGrid.selectedItem}" toolTip="Update an existing database visitor." />
<mx:Button label="Delete Visitor" click="deleteVisitor()" enabled="{dataGrid.selectedItem}" toolTip="Delete the visitor from the database." />
<mx:Button label="Reload Data" click="loadVisitors()" toolTip="Reload the visitor list from the database." />
</mx:ControlBar>
</mx:VBox>
</mx:Panel>
Visitor.as
package com.visitor.vo
import mx.controls.Image;
import spark.primitives.BitmapImage;
[Bindable]
[RemoteClass(alias="com.visitor.Visitor")]
public class Visitor
public function Visitor()
public var visitorId:Number;
public var vType:String;
public var vPurpose:String;
public var vName:String;
public var vAddress:String;
public var cPerson:String;
public var cAddress:String;
public var timeIn:Date;
public var timeOut:Date;
public var vPhoto: Image;
Visitor.java
package com.visitor;
import java.sql.Blob;
import java.sql.Timestamp;
import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.Table;
import org.hibernate.annotations.Index;
@Entity
@Table(name = "visitors")
@NamedQueries( {
@NamedQuery(name = "visitors.findAll", query = "from Visitor"),
@NamedQuery(name = "visitors.byId", query = "select v from Visitor v where v.visitorId= :visitorId") })
public class Visitor {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "visitorId", nullable = false)
private Long visitorId;
@Basic
@Index(name = "vType_idx_1")
@Column(name = "vType", nullable = true, unique = false)
private String vType;
@Basic
@Column(name = "vPurpose", nullable = true, unique = false)
private String vPurpose;
@Basic
@Column(name = "vName", nullable = true, unique = false)
private String vName;
@Basic
@Column(name = "vAddress", nullable = true, unique = false)
private String vAddress;
@Basic
@Column(name = "cPerson", nullable = true, unique = false)
private String cPerson;
@Basic
@Column(name = "cAddress", nullable = true, unique = false)
private String cAddress;
@Basic
@Column(name = "timeIn", nullable = false, unique = false)
private Timestamp timeIn;
@Basic
@Column(name = "timeOut", nullable = true, unique = false)
private Timestamp timeOut;
@Basic
@Column(name = "vPhoto", nullable = true, unique = false)
private Blob vPhoto;
public Visitor() {
super();
public Long getVisitorId() {
return visitorId;
public void setVisitorId(Long visitorId) {
this.visitorId = visitorId;
public String getvType() {
return vType;
public void setvType(String vType) {
this.vType = vType;
public String getvPurpose() {
return vPurpose;
public void setvPurpose(String vPurpose) {
this.vPurpose = vPurpose;
public String getvName() {
return vName;
public void setvName(String vName) {
this.vName = vName;
public String getvAddress() {
return vAddress;
public void setvAddress(String vAddress) {
this.vAddress = vAddress;
public String getcPerson() {
return cPerson;
public void setcPerson(String cPerson) {
this.cPerson = cPerson;
public String getcAddress() {
return cAddress;
public void setcAddress(String cAddress) {
this.cAddress = cAddress;
public Timestamp getTimeIn() {
return timeIn;
public void setTimeIn(Timestamp timeIn) {
this.timeIn = timeIn;
public Timestamp getTimeOut() {
return timeOut;
public void setTimeOut(Timestamp timeOut) {
this.timeOut = timeOut;
public Blob getvPhoto() {
return vPhoto;
public void setvPhoto(Blob vPhoto) {
this.vPhoto = vPhoto;
VisitorService.java
package com.visitor;
import java.sql.Timestamp;
import java.util.Date;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.EntityTransaction;
import javax.persistence.Persistence;
import javax.persistence.Query;
import org.apache.log4j.Logger;
public class VisitorService {
private static final String PERSISTENCE_UNIT = "visitor_db";
private static Logger logger = Logger.getLogger(VisitorService.class);
public VisitorService() {
super();
public List<Visitor> getvisitors() {
logger.debug("** getVisitors called...");
EntityManagerFactory entityManagerFactory = Persistence
.createEntityManagerFactory(PERSISTENCE_UNIT);
EntityManager em = entityManagerFactory.createEntityManager();
Query findAllQuery = em.createNamedQuery("visitors.findAll");
List<Visitor> visitors = findAllQuery.getResultList();
if (visitors != null)
logger.debug("** Found " + visitors.size() + " records:");
return visitors;
public void addUpdateVisitor(Visitor visitor) throws Exception {
logger.debug("** addUpdateVisitor called...");
EntityManagerFactory emf = Persistence
.createEntityManagerFactory(PERSISTENCE_UNIT);
EntityManager em = emf.createEntityManager();
// When passing Boolean and Number values from the Flash client to a
// Java object, Java interprets null values as the default values for
// primitive types; for example, 0 for double, float, long, int, short,
// byte.
if (visitor.getVisitorId() == null || visitor.getVisitorId() == 0) {
// New consultant is created
visitor.setVisitorId(null);
visitor.setTimeIn(new Timestamp(new Date().getTime()));
} else {
visitor.setTimeOut(new Timestamp(new Date().getTime()));
// Existing consultant is updated - do nothing.
EntityTransaction tx = em.getTransaction();
tx.begin();
try {
em.merge(visitor);
tx.commit();
} catch (Exception e) {
logger.error("** Error: " + e.getMessage());
tx.rollback();
throw new Exception(e.getMessage());
} finally {
logger.info("** Closing Entity Manager.");
em.close();
public void deleteVisitor(Long visitorId) {
logger.debug("** deleteVisitor called...");
EntityManagerFactory emf = Persistence
.createEntityManagerFactory(PERSISTENCE_UNIT);
EntityManager em = emf.createEntityManager();
Query q = em.createNamedQuery("visitors.byId");
q.setParameter("visitorId", visitorId);
Visitor visitor = (Visitor) q.getSingleResult();
if (visitor != null) {
EntityTransaction tx = em.getTransaction();
tx.begin();
try {
em.remove(visitor);
tx.commit();
} catch (Exception e) {
logger.error("** Error: " + e.getMessage());
tx.rollback();
} finally {
logger.info("** Closing Entity Manager.");
em.close();
remoting-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<service id="remoting-service" class="flex.messaging.services.RemotingService">
<adapters>
<adapter-definition id="java-object"
class="flex.messaging.services.remoting.adapters.JavaAdapter"
default="true" />
</adapters>
<default-channels>
<channel ref="my-amf" />
</default-channels>
<!-- ADC Demo application -->
<destination id="visitorService">
<properties>
<source>com.visitor.VisitorService</source>
</properties>
</destination>
</service> -
How do I fix extremely slow rendering with buffered images?
I've found random examples of people with this problem, but I can't seem to find any solutions in my googling. So I figured I'd go to the source. Basically, I am working on a simple platform game in java (an applet) as a surprise present for my girlfriend. The mechanics work fine, and are actually really fast, but the graphics are AWFUL. I wanted to capture some oldschool flavor, so I want to render several backgrounds scrolling in paralax (the closest background scrolls faster than far backgrounds). All I did was take a buffered image and create a graphics context for it. I pass that graphics context through several functions, drawing the background, the distant paralax, the player/entities, particles, and finally close paralax.
Only problem is it runs at like 5 fps (estimated, I havn't actually counted).
I KNOW this is a graphics thing, because I can make it run quite smoothly by commenting out the code to draw the background/paralax backgrounds... and that code is nothing more complicated than a graphics2d.drawImage
So obviously I am doing something wrong here... how do I speed this up?
Code for main class follows:
import javax.swing.JApplet;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.event.*;
import Entities.*;
import Worlds.*;
// run this applet in 640x480
public class Orkz extends JApplet implements Runnable, KeyListener
double x_pos = 10;
double y_pos = 400;
int xRes=640;
int yRes=480;
boolean up_held;
boolean down_held;
boolean left_held;
boolean right_held;
boolean jump_held;
Player player;
World world;
BufferedImage buffer;
Graphics2D bufferG2D;
int radius = 20;
public void init()
//xRes=(int) this.getSize().getWidth();
//yRes=(int) this.getSize().getHeight();
buffer=new BufferedImage(xRes, yRes, BufferedImage.TYPE_INT_RGB);
bufferG2D=buffer.createGraphics();
addKeyListener(this);
public void start ()
player=new Player(320, 240, xRes,yRes);
world=new WorldOne(player, getCodeBase(), xRes, yRes);
player.setWorld(world);
// define a new thread
Thread th = new Thread (this);
// start this thread
th.start ();
public void keyPressed(KeyEvent e)
//works fine
}//end public void keypressed
public void keyReleased(KeyEvent e)
//this works fine
public void keyTyped(KeyEvent e)
public void paint( Graphics g )
update( g );
public void update(Graphics g)
Graphics2D g2 = (Graphics2D)g;
world.render(bufferG2D);
g2.drawImage(buffer, null, null);
public void run()
// lower ThreadPriority
Thread.currentThread().setPriority(Thread.MIN_PRIORITY);
long tm;
long tm2;
long tm3;
long tmAhead=0;
// run a long while (true) this means in our case "always"
while (true)
tm = System.currentTimeMillis();
player.moveEntity();
x_pos=player.getXPos();
y_pos=player.getYPos();
tm2 = System.currentTimeMillis();
if ((tm2-tm)<20)
// repaint the applet
repaint();
else
System.out.println("Skipped draw");
tm3= System.currentTimeMillis();
tmAhead=25-(tm3-tm);
try
if (tmAhead>0)
// Stop thread for 20 milliseconds
Thread.sleep (tmAhead);
tmAhead=0;
else
System.out.println("Behind");
catch (InterruptedException ex)
System.out.println("Exception");
// set ThreadPriority to maximum value
Thread.currentThread().setPriority(Thread.MAX_PRIORITY);
public void stop() { }
public void destroy() { }
}Here's the code for the first level
package Worlds;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.util.*;
import javax.swing.*;
import javax.imageio.*;
import java.awt.event.*;
import java.awt.*;
import java.awt.image.*;
import java.io.File;
import java.net.URL;
import java.awt.geom.AffineTransform;
import Entities.Player;
public class WorldOne implements World
Player player;
//Location of Applet
URL codeBase;
// Image Resources
BufferedImage paralax1Image;
BufferedImage paralax2Image;
BufferedImage backgroundImage;
// Graphics Elements
int xRes;
int yRes;
double paralaxScale1,paralaxScale2;
double worldSize;
int frameX=1;
int frameY=1;
public WorldOne(Player player, URL codeBase, int xRes, int yRes)
this.player=player;
this.codeBase=codeBase;
this.xRes=xRes;
this.yRes=yRes;
worldSize=4000;
String backgroundImagePath="worlds\\world1Graphics\\WorldOneBack.png";
String paralax1ImagePath="worlds\\world1Graphics\\WorldOnePara1.png";
String paralax2ImagePath="worlds\\world1Graphics\\WorldOnePara2.png";
try
URL url1 = new URL(codeBase, backgroundImagePath);
URL url2 = new URL(codeBase, paralax1ImagePath);
URL url3 = new URL(codeBase, paralax2ImagePath);
backgroundImage = ImageIO.read(url1);
paralax1Image = ImageIO.read(url2);
paralax2Image = ImageIO.read(url3);
paralaxScale1=(paralax1Image.getWidth()-xRes)/worldSize;
paralaxScale2=(paralax2Image.getWidth()-xRes)/worldSize;
catch (Exception e)
System.out.println("Failed to load Background Images in Scene");
System.out.println("Background Image Path:"+backgroundImagePath);
System.out.println("Background Image Path:"+paralax1ImagePath);
System.out.println("Background Image Path:"+paralax2ImagePath);
}//end constructor
public double getWorldSize()
double xPos=player.getXPos();
return worldSize;
public void setFramePos(int frameX, int frameY)
this.frameX=frameX;
this.frameY=frameY;
public int getFrameXPos()
return frameX;
public int getFrameYPos()
return frameY;
public void paralax1Render(Graphics2D renderSpace)
int scaledFrame=(int)(paralaxScale1*frameX);
renderSpace.drawImage(paralax1Image,-scaledFrame,0,null); //Comment this to increase performance Massively
public void paralax2Render(Graphics2D renderSpace)
int scaledFrame=(int)(paralaxScale2*frameX);
renderSpace.drawImage(paralax2Image,-scaledFrame,0,null); //Comment this to increase performance Massively
public void backgroundRender(Graphics2D renderSpace)
renderSpace.drawImage(backgroundImage,null,null); //Comment this to increase performance Massively
public void entityRender(Graphics2D renderSpace)
//System.out.println(frameX);
double xPos=player.getXPos()-frameX+xRes/2;
double yPos=player.getYPos();
int radius=15;
renderSpace.setColor (Color.blue);
// paint a filled colored circle
renderSpace.fillOval ((int)xPos - radius, (int)yPos - radius, 2 * radius, 2 * radius);
renderSpace.setColor(Color.blue);
public void particleRender(Graphics2D renderSpace)
//NYI
public void render(Graphics2D renderSpace)
backgroundRender(renderSpace);
paralax2Render(renderSpace);
entityRender(renderSpace);
paralax1Render(renderSpace);
}//end class WorldOneI can post more of the code if people need clarification. And to emphasize, if I take off the calls to display the background images (the 3 lines where you do this are noted), it works just fine, so this is purely a graphical slowdown, not anything else.
Edited by: CthulhuChild on Oct 27, 2008 10:04 PMare the parallax images translucent by any chance? The most efficient way to draw images with transparent areas is to do something like this:
public static BufferedImage optimizeImage(BufferedImage img)
GraphicsDevice gd = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
GraphicsConfiguration gc = gd.getDefaultConfiguration();
boolean istransparent = img.getColorModel().hasAlpha();
BufferedImage img2 = gc.createCompatibleImage(img.getWidth(), img.getHeight(), istransparent ? Transparency.BITMASK : Transparency.OPAQUE);
Graphics2D g = img2.createGraphics();
g.drawImage(img, 0, 0, null);
g.dispose();
return img2;
}I copied this from a util class I have and I had to modify it a little, I hope I didn't break anything.
This piece of code does a number of things:
- it allows the images to be hardware accelerated
- the returned image is 100% compatible with the display, regardless of what the input image is
- BITMASK transparent images are an incredible amount faster than translucent images
BITMASK means that a pixel is either fully transparent or it is fully opaque; there is no alpha blending being performed. Alpha blending in software rendering mode is very slow, so this may be the bottleneck that is bothering you.
If you require your parallax images to be translucent then I wouldn't know how to get it to draw quicker in an applet, other than trying out java 6 update 10 to see if it fixes things. -
How to store the images in Oracle?
Hi,
I am a new developer, trying to find out how to store the images in Oracle. Is there anyway that I can store the images in Oracle and insert them into my html file?
Thanks!
SarahThere is a simple image example available from OTN.
From the OTN main page, go to Products --> interMedia --> Sample Code. The name of the example is "Load rich media content with a browser."
This example loads and retrieves an image from an Oracle8i database through a web page using the Oracle interMedia Web Agent.
Hope this helps.
null -
Please tell how to store jpeg images in SQL Server using NI Database Connectivity Toolset.
http://www.w3schools.com/sql/sql_datatypes.asp
You setup a field as BLOB and store the binary of the picture there. Depending on the database it can be called differently as you can see in the link, in SQL server there's even a Image datatype.
/Y
LabVIEW 8.2 - 2014
"Only dead fish swim downstream" - "My life for Kudos!" - "Dumb people repeat old mistakes - smart ones create new ones."
G# - Free award winning reference based OOP for LV -
How to store the images in tables
how to store the images in tables .what is the use of "clob ,blob"
Using with the CLOB or BLOB, you can store the images in the table.
Srini C -
How to store image in the oracle database 10.2. using File Maker 10.
Hi.,
I want to store image, media file in the oracle database using File Maker as a front end.
I connect Oracle using odbc from file maker. There are table and in that table there a column "pict" of blob type. but this column is not showing in the file maker.
2. Here I can not change the data type of any column.
Now how to store images in the oracle table using odbc or any other tool.
Regards,
ShyamI wrote an example for my students, you can find it here. It's using PHP as the front end but all you need to do is know how and leverage the stored procedures. All code is downloadable in zip files from the blog.
http://blog.mclaughlinsoftware.com/php-programming/oracle-lob-processing/ -
How to store images in database and retrieve them back to page?
Well I don't know how to store an image file to a database (say MSSQL) from the JSP and retrieve it back whenever needed and put it on the JSP page? Please help me.
I am not sure how to store images in database but what you can do is store the image into particular folder using FileOutputStream and its unique name into the database...and than retrieve it from the folder using that name retrieved from database...
<%
response.setContentType("text/html");
response.setHeader("Cache-control","no-cache");
String err = "";
String lastFileName = "";
String contentType = request.getContentType();
String boundary = "";
final int BOUNDARY_WORD_SIZE = "boundary=".length();
System.out.println("contentType --> "+contentType);
System.out.println("BOUNDARY_WORD_SIZE --> "+BOUNDARY_WORD_SIZE);
if(contentType == null || !contentType.startsWith("multipart/form-data"))
err = "Ilegal ENCTYPE : must be multipart/form-data\n";
err += "ENCTYPE set = " + contentType;
else
boundary = contentType.substring(contentType.indexOf("boundary=") + BOUNDARY_WORD_SIZE);
System.out.println("boundary --> "+boundary);
boundary = "--" + boundary;
try
ServletInputStream sis = request.getInputStream();
byte[] b = new byte[1024];
int x=0;
int state=0;
String name=null,fileName=null,contentType2=null;
java.io.FileOutputStream buffer = null;
while((x=sis.readLine(b,0,1024))>-1)
System.out.println("************ x ********** "+x);
String s = new String(b,0,x);
System.out.println("************ s ********** \n"+s);
if(s.startsWith(boundary))
state = 0;
System.out.println("name="+name);
System.out.println("filename="+fileName);
name = null;
contentType2 = null;
fileName = null;
else if(s.startsWith("Content-Disposition") && state==0)
System.out.println("-- 1 --");
state = 1;
System.out.println("s.indexOf(filename=) --> "+s.indexOf("filename="));
if(s.indexOf("filename=") == -1)
name = s.substring(s.indexOf("name=") + "name=".length(),s.length()-2);
System.out.println("after name substring 1 "+name);
else
name = s.substring(s.indexOf("name=") + "name=".length(),s.lastIndexOf(";"));
System.out.println("after name substring 2 "+name);
fileName = s.substring(s.indexOf("filename=") + "filename=".length(),s.length()-2);
System.out.println("fileName --> "+fileName);
//String fileName1 = s.substring(s.indexOf("filename=") + "filename=".length(),s.length());
//System.out.println("fileName1 -->"+fileName1);
if(fileName.equals("\"\""))
fileName = null;
else
String userAgent = request.getHeader("User-Agent");
System.out.println("userAgent --> "+userAgent);
String userSeparator="/"; // default
if (userAgent.indexOf("Windows")!=-1)
System.out.println("test --> "+"\\");
userSeparator="\\";
if (userAgent.indexOf("Linux")!=-1)
userSeparator="/";
System.out.println("userSeparator "+userSeparator);
System.out.println("fileName before inserting userSeparators "+fileName);
fileName = fileName.substring(fileName.lastIndexOf(userSeparator)+1,fileName.length()-1);
System.out.println("fileName after userSeparators "+fileName);
if(fileName.startsWith( "\""))
fileName = fileName.substring( 1);
name = name.substring(1,name.length()-1);
System.out.println("name 2 --> "+name);
System.out.println("final file name "+fileName);
if (name.equals("file"))
if (buffer!=null)
buffer.close();
lastFileName = fileName;
buffer = new java.io.FileOutputStream("/Documents and Settings/sunil/Desktop/images/"+fileName);
else if(s.startsWith("Content-Type") && state==1)
System.out.println("-- 2 --");
state = 2;
contentType2 = s.substring(s.indexOf(":")+2,s.length()-2);
System.out.println("contentType2 --> "+contentType2);
else if(s.equals("\r\n") && state != 3)
System.out.println("-- 3 --");
state = 3;
else
System.out.println("-- 4 --");
if (name.equals("file"))
System.out.println("Final x :: "+x);
buffer.write(b,0,x);
} // while closing
sis.close();
buffer.close();
}catch(java.io.IOException e)
err = e.toString();
boolean ok = err.equals("");
if(!ok)
out.println(err);
else
%>
<SCRIPT language="javascript">
history.back(1);
alert('Uploaded <%=lastFileName%>');
window.location.reload(false);
</SCRIPT>
<%
out.println("done");
%>
</BODY>
</HTML>
I think it will solve ur problem.. -
hi,
can u pls tell how to store images in MAXDB using java.......
regards
Guruhttps://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/f5d3c40a-0801-0010-55b7-9e3b01745a40
-
please tell me how to store images in access
The JDBC-ODBC Bridge?
Or, better yet, a Google (or whatever engine) search for a real JDBC Driver for access (I do believe at least one exists).
The JDBC tutorials and, maybe, a little Google (or whatever engine) searching for examples, should provide more than enough to get started.
Once you have something, and it still has a problem, post it, along with a complete, and concise, description of the problem, along with all error messages, and we will help you further. -
How to store images in database using java
hii
how to store images in database using java..........
Message was edited by:
naveennagaI asked a similar question once and the answer I got was - Don't.
Instead, store the images on a drive somewhere and store the path in the database.
But I'm no expert - that's just what I was told by someone who does this kind of stuff a lot.
Hope that helps. -
How do I get my IPad 2 images onto a regular TV? I've got the converter plug for HDMI from the apple store and an HDMI cord, etc. I've plugged everything in and the TV recognizes a devise, but no images on TV...help!
Hey Anndog,
Thanks for the question. I understand you wish to connect your iPad 2 to an HDMI TV. The following article provides some great information on how to do this, along with troubleshooting information if you are experiencing issues:
iOS: About Apple Digital AV Adapters
http://support.apple.com/kb/HT4108
Thanks,
Matt M.
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