Fill circles on xy graph

Hello,
I have a VI that draws circles on a XY graph. These circles represent the position of a microscope objective. The dwell time of the objective is increased, and I would like to fill the circles with color intensity that is related to this increase (I am using LV 8.0).
Thanks in advance,
Gaby
Attachments:
draw circles loop.vi ‏28 KB

Your VI using something called Stuff:\LabView games\Control Program\Linspace.vi
When I load it into LV 8.6.1, it finds a different vi called "Linspace" deep in the VI lib, which does something completely different.
I suggest you rename your VI to not conflict with the system, and possibly include it here.
That having been said, an X-Y graph is perhaps not the best place for a filled-circle type of drawing.
I'm not sure when the feature was introduced, but there is now a PLOT IMAGES property for graphs, where you can insert a picture in front of, or behind the plot data.
Consider using a PICTURE control to plot the data and the circles.
If you must use only an X-Y graph, then you have to create a separate plot for the FILL part, consisting of concentric circles around the center point, and colored the way you want.
Steve Bird
Culverson Software - Elegant software that is a pleasure to use.
Culverson.com
Blog for (mostly LabVIEW) programmers: Tips And Tricks

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Scale Circle on XY Graph

I found a post from 2005, showing how to plot a circle on an xy-graph knowing the center and radius,
http://forums.ni.com/ni/board/message?board.id=170&message.id=146782&query.id=2708998#M146782. My xy grid is rectangle and Altenback mentioned a solution when your grid is not square but I'm not able to follow. Any suggestions out there?
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Dear People,
I have an error message :
"TryBouncingBalls.java": Error : class Circle not found in class stan_bluej_ch5_p135.TryBouncingBalls at line 67, "
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package stan_bluej_ch5_p135;
import java.awt.*;
import java.awt.geom.*;
public class TryBouncingBalls
public static void main(String[] args)
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BouncingBall ball3 = new BouncingBall(90,100,16, Color.red, 500, myCanvas);
BouncingBall ball4 = new BouncingBall(30,30,20, Color.green, 500, myCanvas);
ball.draw();
ball2.draw();
ball.draw();
ball2.draw();
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boolean finished = false;
while(!finished) {
myCanvas.wait(50); // small delay
ball.move();
ball2.move();
ball3.move();
ball4.move();
// stop once ball has travelled a certain distance on x axis
if(ball.getXPosition() >= 550 && ball2.getXPosition() >= 550)
finished = true;
myCanvas.setFont(new Font("helvetica", Font.BOLD, 14));
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myCanvas.drawString("We are having fun, ...\n\n", 20, 30);
myCanvas.wait(1000);
myCanvas.setForegroundColor(Color.black);
myCanvas.drawString("...drawing lines...", 60, 60);
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myCanvas.setForegroundColor(Color.green);
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myCanvas.drawString("...and shapes!", 110, 90);
myCanvas.setForegroundColor(Color.red);
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Rectangle rect4 = new Rectangle(xPos + 150, 220, 40, 15);
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myCanvas.fill(rect2);
myCanvas.fill(rect3);
myCanvas.fill(rect4);
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myCanvas.fill(rect2);
myCanvas.fill(rect3);
myCanvas.fill(rect4);
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myCanvas.erase(rect2);
myCanvas.erase(rect3);
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rect2.setLocation(xPos, 120);
rect3.setLocation(xPos, 180);
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myCanvas.fill(rect2);
myCanvas.fill(rect3);
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package stan_bluej_ch5_p135;
import java.awt.*;
import java.awt.geom.*;
* Class BouncingBall - a graphical ball that observes the effect of gravity. The ball
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* will fall downwards, accelerating with time due to the effect of gravity, and bounce
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* This movement can be initiated by repeated calls to the "move" method.
* @author Bruce Quig
* @author Michael Kolling (mik)
* @author David J. Barnes
* @version 1.1 (23-Jan-2002)
public class BouncingBall
private static final int gravity = 3; // effect of gravity
private int ballDegradation = 2;
private Ellipse2D.Double circle;
private Color color;
private int diameter;
private int xPosition;
private int yPosition;
private final int groundPosition; // y position of ground
private Canvas canvas;
private int ySpeed = 1; // initial downward speed
* Constructor for objects of class BouncingBall
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* @param ballDiameter the diameter (in pixels) of the ball
* @param ballColor the color of the ball
* @param groundPos the position of the ground (where the wall will bounce)
* @param drawingCanvas the canvas to draw this ball on
public BouncingBall(int xPos, int yPos, int ballDiameter, Color ballColor,
int groundPos, Canvas drawingCanvas)
xPosition = xPos;
yPosition = yPos;
color = ballColor;
diameter = ballDiameter;
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erase();
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if(yPosition >= (groundPosition - diameter) && ySpeed > 0) {
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package stan_bluej_ch5_p135;
import java.awt.*;
import java.awt.geom.*;
* Class BallDemo - provides two short demonstrations showing how to use the
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* @author Michael Kolling and David J. Barnes
* @version 1.0 (23-Jan-2002)
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myCanvas.setFont(new Font("helvetica", Font.BOLD, 14));
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myCanvas.wait(500);
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myCanvas.wait(500);
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myCanvas.drawLine(290, 10, 320, 120);
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myCanvas.setForegroundColor(Color.red);
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myCanvas.fill(rect);
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public void bounce()
int ground = 400; // position of the ground line
myCanvas.setVisible(true);
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myCanvas.drawLine(50, ground, 550, ground);
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BouncingBall ball = new BouncingBall(50, 50, 16, Color.blue, ground, myCanvas);
ball.draw();
BouncingBall ball2 = new BouncingBall(70, 80, 20, Color.red, ground, myCanvas);
ball2.draw();
// make them bounce
boolean finished = false;
while(!finished) {
myCanvas.wait(50); // small delay
ball.move();
ball2.move();
// stop once ball has travelled a certain distance on x axis
if(ball.getXPosition() >= 550 && ball2.getXPosition() >= 550)
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package stan_bluej_ch5_p135;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;
* Class Canvas - a class to allow for simple graphical
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* @author Michael Kolling (mik)
* @author Bruce Quig
* @version 1.8 (23.01.2002)
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private JFrame frame;
private CanvasPane canvas;
private Graphics2D graphic;
private Color backgroundColor;
private Image canvasImage;
* Create a Canvas with default height, width and background color
* (300, 300, white).
* @param title title to appear in Canvas Frame
public Canvas(String title)
this(title, 600, 600, Color.white);
* Create a Canvas with default background color (white).
* @param title title to appear in Canvas Frame
* @param width the desired width for the canvas
* @param height the desired height for the canvas
public Canvas(String title, int width, int height)
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* @param title title to appear in Canvas Frame
* @param width the desired width for the canvas
* @param height the desired height for the canvas
* @param bgClour the desired background color of the canvas
public Canvas(String title, int width, int height, Color bgColor)
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canvas = new CanvasPane();
frame.setContentPane(canvas);
frame.setTitle(title);
canvas.setPreferredSize(new Dimension(width, height));
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* Set the canvas visibility and brings canvas to the front of screen
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* @param visible boolean value representing the desired visibility of
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// first time: instantiate the offscreen image and fill it with
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graphic.fillRect(0, 0, size.width, size.height);
graphic.setColor(Color.black);
frame.show();
* Provide information on visibility of the Canvas.
* @return true if canvas is visible, false otherwise
public boolean isVisible()
return frame.isVisible();
* Draw the outline of a given shape onto the canvas.
* @param shape the shape object to be drawn on the canvas
public void draw(Shape shape)
graphic.draw(shape);
canvas.repaint();
* Fill the internal dimensions of a given shape with the current
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* @param shape the shape object to be filled
public void fill(Shape shape)
graphic.fill(shape);
canvas.repaint();
* Fill the internal dimensions of the given circle with the current
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public void fillCircle(int xPos, int yPos, int diameter)
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public void fillRectangle(int xPos, int yPos, int width, int height)
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graphic.setColor(backgroundColor);
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canvas.repaint();
* Erase the internal dimensions of the given circle. This is a
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Dear Miciuli,
I found the definition for the circle in the canvas class and used it to creates circles ! Thank you for jaring my brain into thinking !
Stan
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How to make a round circle with the notch line

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If I in Illustrator on the same layer make a Elipse with a 50pt stroke (blue color) and then i make 2 lines with a 20pt stroke (black color), so its lookslike a cross and rotate it 45 degr.
Then i Outline the 3 elements "Outline Stroke" and align the 3 elements H and V Align Center.
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I did it this way.
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Create a new blank image.
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Message was edited by: photodrawken to add correction.

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Nobody ??

Graphical circular fill

I've been looking for a gauge type numeric indicator that can show a type of circulr fill, as the needle on the gauge increase I would like it to fill the circle as it increase... almost like a type of dynamic pie chart, for example at 50% full I would like half the circle to be one color and the other half to be some other color... has anyone seen anything like this before?
much thanks!

Use a picture indicator and draw a filled circle of desired size.
LabVIEW Champion . Do more with less code and in less time .

Changing graph type, color change

Why when I change the type of graph it changes the colors automatically. I had blue, green, red (in the 3d fills) for a bar graph respectively representing 2009,2010,2011. I am adding this year I wanted to switch to a line graph - why are the colors changing auto to add a yellow and making 2012 red? How can I stop this? I find it quite difficult to change the colors of all the lines/symbols using the 3D fills, actually it doesn't work very well @ all, so I would prefer not to have to do this for 10 graphs per client @ 5 clients. Is there a more efficient way to accomplish this?
Also brings me to my next question. I was attempting to use the copy style, paste style function with the graphs - to ease the pain of all of this. When I do that it only pastes the axis scale (exactly what I don't want copied)! Is there a way to c&p the STYLE...the colors, weight, and data symbols of the lines. Therefore if I must do all the color change manually I would only have to do it once?
Thanks so much.

Here's an example, using a Line Graph.
The first graph uses the full table, which has a column for each year, and extends to 2017, using 'placeholder data.'
For the second, all of the data, and the header labels (year) was deleted from the table.
Not good for presentation (nor was the table with all those empty cells), so columns E (2012) to J were selected and Hidden.
When data became available for 2012 (ie. about 10 or 11 months from now), the hidden columns were Unhidden, the label and data were entered into column E (2012), and columns F - J were again Hidden.
I haven't tried this with bar graphs yet. A closer look at the structure of your data and a screen shot of a sample bar graph would be useful in avoiding a 40 day trek through the wilderness.
Regards,
Barry

HT201740 How to make an unfilled circle on Preview (new version)

I'm not dealing well with the new version of Preview. Things seem so much harder and less intuitive.
How can I make a non-filled circle?
Many thanks

Create a circle and set the fill to None.

How to change 'half-moon' Layer Thumbnail to a graph

I've noticed that in some of my images, the Layers Thumbnail -- the black & white circle between the Layer Visibility and the Layer Mask -- is not a circle but a graph. How do I change from one to the other?
I can understand the graph, but what is the circle supposed to represent?

Thanks Zeno, for the suggestion. I had already checked out the section in PS Help that you provided the link for, but I couldn't work out why, when the setting for Layer Thumbnails were all set to small, that some of the images had graphs and other had the circles. You confirmed the solution and now I know where the problem was:
* the images that had the graph were vertical format and there was enough vertical space to fit in the graph;
* the images that had the circle were horizontal format. The vertical dimension must have been just under the size limit for the graph.
A bit confusing. I assumed the thumbnails would be scaled so that on a certain thumbnail size setting, the vertical dimension of the thumbnails was the same so that the spacing of the various layers remained constant. Not so. The longest dimension appears to remain constant.
Anyway, problem fixed. Thanks.

Concentric circles, but not quite.

Does anyone know how to easily reproduce an expanding pattern made of circles like this: http://i1.creativecow.net/u/181152/screenshot2011-09-01at6.35.16pm.png
Many thanks.
Richard.

Richard,
To avoid confusion, the term dots is used for the small filled circles here.
The distance between dots seems to be about the same as their size. This corresponds to 6 dots times the number of the circle (6 dots in the first circle round the central dot etc).
A way that is more accurate than using the Polar grid is a Blend based on a single outer circle. The exact size and number of Blend steps depend on the desired number of circles/dots. For 61 circles round a central dot (with 366 dots in the outermost circle), you may:
1) Create a circle with Width = Height = 233 times the size of the dot, give it a Stroke Weight = the dot size, set the Cap to Round, tick Dashed Line with Dash = 0 and Gap = twice the dot size;
2) Ctrl/Cmd+C+F to create a copy and set W = H = 0;
3) Object>Blend>Options set Specified Steps = 60 (I always prefer to set Orientation to Align to Path unless specifically not, silly sometimes);
4) Select the two circles and Object>Blend>Make;
5) Enjoy.
If you have too many circles/dots, you may:
6) Object>Blend>Expand and delete the unnecessary ones from the outside in.
You may change the dot colour at any time.
It may be mentioned that the size of the outer circle is adjusted for the inherent inaccuracy of the circle shape.

Toshiba Encore WT8-A-103 - Jumping circles/points on the screen

Hi all,
one strange issue that seems to happen quite often with my Toshiba Encore WT8-A-10:
some jumping (mostly filled) circles/points or spots on the display. Firstly, always arranged in a straight line (both holding the tablet in landscapeor portrait mode). Today more than one line was affected.
Once this happened after starting the tablet and those jumping things resulted in keystrokes when I had to enter the password for my outlook.com account. I tried to start Taskmanager when this happened today, but this affect seems to be using quite some processor power, so I could not start Taskmanager. Also, when switching from the Desktop to the Start screen in W8.1, all of the tiles are kind of zoomed out, and I cannot use the touchscreen to scroll around and open programs. Since this was going on for some minutes without getting better, I had to press the power button for some seconds to perform a restart of the tablet.
Anyone else with this strange phenomenon?
Best,
Thomas

Okay, good idea. Just took 4 pictures right after starting the tablet and entering my credentials. Take a look at those dots in about the lower third of the image. Those dots go on and out, appear on other parts of the screen and mess up with the overall performance. Know these fancy xmas lights on a tree, where one goes off, the next goes on, thus simulating a kind of "movement". That's exactly what it is. Best - Thomas

Fill circles on xy graph

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