Draw an arc with three point

A . .C
B.
Hi all, i try to draw an arc A-B-C but i only has these three point, can anybody tell me how to do this and if these three point is almost colinear can i do this,
thanks!

I would think the Parabolic version would be able to
make a Circular arc as well as a Parabolic one.By a parabolic arc in this case I meant the arc of a parabola whose axis is the line bisector of AC and that passes through the points A, B, and C. You will get infinitely many parabolic arcs by choosing the axis differently. Generally a circular arc and a parabolic arc through three points are different.
But even though there are infinitely many arcs that pass through three points, it seems quite probable that the OP wants a circular one....

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Draw arc with three point( start, middle, end)

hi all,
i want to draw an arc with start point, middle point and end point, how can i do this?

Not clear what you want, but will try
How to calculate - the unit is the pixel it takes practice thats all & a bit of trial and error.
       | intB (pixels from the top)
       |
       |
intA |_____________________________
(from left)                          |
       |                             |
       |                             |
       |                             |
       |                             |
       |                             |
       |                             |
       |                             |
       |                             |
       |_____________________________| intD (from top)
                                     intC (from left)The pie slice goes from the centre of the undrawn square
If you only want an arc then you can paint over it again with eg
g.setColor(Color.white);
g.fillRect(0, 0, width, height);
g.setColor(Color.blue);
g.fillArc(intA, intB, intC, intD, intStartArc, intEndArc);
g.setColor(Color.white);
g.fillArc(intA, intB, intC-1, intD-1, intStartArc, intEndArc);
or something similar

Draw a arc with 3 points.

Hi all,
If you want to draw a arc in LabVIEW, You need star angle and angle, angle can - or +, that means your need know the direction,
if CW angle is +;
if CCW angle is -;
We can use cross product to get Z to get direction:
Welcome to QQ Group: LabVIEW_Home 213985957
Boone
Solved!
Go to Solution.

Boone301 wrote:
Yes, it is a solttion.
As we kown a lot of CNC have G02 and G03, but without G05, we can use this as G05.
Boone
A screenshot does not make a solution.
It is useless!
Post your VI.
How many times do we have to say it????

How to draw an arc with width more than 1

Hi!
I got the following problem:
I need to draw an arc under JDK1.1.
It works fine, but I need to be able to adjust the
thickness. I didn't find anything in the graphics-
class.
Who knows?
Valentin

I think you're just gunna have to draw multiple arcs with start/end points that are pixel increments away from each other. In Java2 you could use set the "stroke" with Java 2D, but that's not availale in 1.1.

How, in Illustrator CS5, can I select all objects with three points (or nodes)?

I am quite new to Illustrator, but it seems this should be simple. (It is trivial in CorelDraw X4: After selecting an object with three nodes, I go to Edit > Find and Replace > Find Objects > Find objects that match the currently selected object, and navigate through the remaining menus.)
In Illustrator CS5, the options under Select > Same do not seem to include selecting all objects with the same number of nodes as the currently selected object.
Double-clicking on the Magic Wand Tool also fails to provide such an option.
Thank you for any help.
P.S. Also useful would be knowing how to add other criteria to this search, e.g. how to select all objects with three points *and* the current fill color.

There is a script that can select "less than x points"
Kelso Cartography

Arc between two points

Hey Everybody!!
I want to draw an arc between two points.. i can't seem to be able to figure the math but i'm sure this is fairly simple and somebody has done this before...
Thanks in advance.

that's correct...you need three points to define an arc..
the reason i said two points is that i'm doing a diagram editor and i have to let the user connect pairs of objects using arrow, arcs, lines etc...
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Can both Locator & spatial store three point curves or arcs?

1) can both Oracle Locator and Oracle Spatial store three pint curves or arcs?
2) Can both Oracle Locator and Oracle Spatial receive input of bearing / distance to creat a line segment?

hmmm, i got this exact question in mail today. someone is double-dipping!
Both Locator and Spatial allow storage of three point circular arcs. Circular arcs are only supported in non-geodetic coordinate systems.
In Oracle 10g Release 2 both Locator and Spatial include a function called sdo_util.point_at_bearing. If you enter a point, a distance, and a bearing (in radians) we return the end point. With the end point and the original input point a line segment can be contructed very easily.

Has anyone figured out a good way to draw an arc in Keynote?

I'm trying to switch over from PowerPoint to Keynote, but one thing that I use all the time in the presentations I use is the arc (specifically, the arc with an arrow at the end of it).
As far as I can tell, it is impossible to draw such a thing in Keynote, though it seems like such a simple thing. It is possible to create the arc in PowerPoint, copy it, and paste it into Keynote, but it can not be manipulated in any way except resizing it after that.
This is probably a feature request, but I thought that I'd at least ask if anyone else has confronted this problem and successfully conquered it in some way. I suppose I could draw an oval with no fill, and obscure the oval by some object that matches the background (if I use a solid color background), and draw the arrow heads by hand, but it's (a) a lot of work, and (b) not going to look good, and (c) hard to manipulate after it has been created.

This can be done in Keynote -- it is a bit cumbersome, but offers a huge amount of flexibility in the final product:
- In the Shapes menu in the toolbar, choose the Draw an Arbitrary Shape option (the last one with the pen).
- Click once to start a line, a second time to produce an endpoint, and then press Escape to stop drawing. You will now have a line.
- In the Graphic Inspector, set the Fill to "none", the Stroke to whatever colour you want the line to be, and use the Endpoints menus to add an arrowhead.
- To make this line an arc, select the line, then in the Format menu, under the Shape flyout menu, choose "Make Editable". The line should now show a red dot at each end, which are Bezier control points and you can now add a third Bezier control point to the line, which is how you will make it arc.
- With the line selected and the control points visible, hold down the Option key. Your cursor should change to a pen nib with a plus sign, indicating that you can add a control point on the line. Click on the middle of the line to add a point.
- You can drag this point with the cursor, and it will create an angle in the line. By default the point is a corner, and so the angle is sharp. Double click on the point to make it a smooth curve point. You will now see two Bezier control handles on either side of the point tangential to the curve. You can move the handles to change how the curve looks (such as how tight or wide the curve is). You can manipulate each handle individually, or hold down the Option key to affect both handles.
This procedure sounds more difficult than it actually is in practice, and the arc you get can be completely customized as you like. That said, if you find you use the same basic shape over and over, you might consider creating a "clippings" presentation that has various re-used elements in it, so that you can easily copy and paste from it to other presentations.

I am trying to hook my macbook pro to a sony bravia TV via DVI to HDMI cable and the TV will not recognize the signal. The same set up has worked with three other, though different televisions. Any thoughts?

I am trying to hook my MacBook Pro to a Sony Bravia TV via DVI to HDMI cable and the TV will not recognize the signal. I have used the same setup with three other TV's, each a different brand with no problem. Any ideas?

Is the TV set to take input from the HDMI connection?
On your computer, if you open the Displays preferences and do not see an Arrangement tab (or there is an Arrangement tab that shows only a single monitor) then there is something physically wrong with your connection. Try clicking Detect Displays just to see if the computer can now sense the presence of the connection. Check your connections.
If you do have an Arrangement tab, and it shows two screens, then click Gather Windows to bring the TV's Displays preferences on to your main screen if the TV is not yet showing an image. Set the proper resolution (probably 720p, 1080i, or 1080p). Set the refresh rate (probably 60Hz) if that preference is shown. You should see a picture at this point. I recommend turning off mirrored displays if it is enabled.

Suggestion to draw a line between two points...

I have the XYZ position of 2 points, I would like to draw a line between those points. I have tried with a cylinder and it did not work as I expect...I guess a better method exist in Java3D... Do you have any suggestions??
thanks
Pete

try the LineArray class.

Three-Point Edit Missing Frames

Hello,
So I am exerpiance a very stange problem, with a very simple operation, and I have no idea why this is happening. I am using a three-point eidt to cover some heavy breaths in a voice over. I have 20 seconds or so of roomtone loaded into my source viewer. The roomtone has an in point a few frames in (to leave room for a transition) and no out point. On my timeline, I create an in and out point, around the audio I want to cover. The gap I am covering is usually only a few frames, a quick inhale, or weird mouth noise. I have done this, many times no problem.
Today, everytime I overwite to replace the audio on the timeline, the clip is a few frames short of my selection. So, for example, I have a 14 frame selection in my timeline. When I overwrite, PP is only placing 11 frames from my roomtone clip. Again, roomtone is over 20 seconds, loading in the source viewer with only an in point. Timeline as both in and out point, so it's a proper three point edit setup, and the is way more then enough material to cover the selection.
If I have to roll out every clip I cover, it's going to be a long day, so any help would be apperciated. I am using Premeire Pro CC (Version 7.2.1) on a Mac (OS X 10.9.1). I have uses these exact versions before, and not had this issue.
Thanks,
J

This has been a challengeing little problem for me. Each time I think I have norrowed it down it crops back up. That being said I have come up with a work around, that is working consistently. I thought I would share it, incase someone else has the same problem.
The room tone clip I use has video, but normally, don't patch it to the timeline. I noticed that when I did patch the video in, the correct number of frames where placed on the timeline. So I added an extra track above all the others, turned visibility for that track off, and patch the video there. When I was done with that sequence, I simply deleted the extra track.
Still not as good as an actual fix, but much less time consuming then having to adjust each edit.

Arc with recursive relationship

Version 3.1.1: I'm trying to add an arc to a logical data model using Barker Notation. The problem is that when one of the relationships is recursive, the tool does not ask which end to use and does not draw the arc correctly. I think this is a defect. Is there a work around? I'm new to this tool.

RE: It's interesting what are you going to express with that.
In 30 years of data modeling I've never needed to show both ends of a recursive relationship as mutually exclusive, but that would be the case if the business wanted to enforce a two level hierarchy rule - every entity could be either the parent of one or more children or the child of one parent, but since only two levels are allowed not both at once.
On the other hand it is very common for one end of a recursive relationship to be mutually exclusive with some other relationship. For example, in a hierarchy only leaf nodes can have some other relationship.
Rich

How to draw an Arc in java3D

My problem is..i wan to draw an arc in java3D..on the canvas..which is on the simpleuniverse..
plz help me

As far as I know there is no simple way to draw an arc in java3d. you could calcultate the points by hand and then put them into a LineArray.

How to see my code drawing a line from one point to another

hi, im wondering if you could help me.
i am working on my project which is to visualise travelling salesman heuristics.
i have managed to make my first heuristic work, but my problem is that when i clicked the run button on my GUI,
the output is already a complete tour with all the edges already drawn, but what i want is to see how it solves or draw the lines from one vertex to another just by clickin the run button once.
would be great if you could advice me of what method or technique i need to use to see my application solving the tour or drawing the edges.
below is my cofe for drawing the edges from one point to another
void drawLineNNh(Graphics g){
         Graphics2D g2 = (Graphics2D) g;
         g2.setColor(Color.blue);
         int i = 0;
         if (P == null) return;
         else
             for(i=0; i<P.getSize(); i++)
             Line2D.Double drawLine = new Line2D.Double(P.x_coor[nnH.seen]+5, P.y_coor[nnH.seen[i]]+5, P.x_coor[nnH.seen[i+1]]+5,P.y_coor[nnH.seen[i+1]]+5);
Line2D.Double drawLastEdge = new Line2D.Double(P.x_coor[nnH.seen[P.getSize()-1]]+5, P.y_coor[nnH.seen[P.getSize()-1]]+5, P.x_coor[0]+5,P.y_coor[0]+5);
g2.drawString( " Total Distance : " + nnH.totalDistance , 10, 300);
g2.draw(drawLine);
g2.draw(drawLastEdge);
public void setNNh(Points p)
nnH = new NNheuristic(p);
useNNh = true;
public void paint(Graphics g)
frame(g);
drawpoints(g);
if(useNNh)
drawLineNNh(g);
below is my code for calling the above method to draw edges, actionlistererun.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent e) {
if (e.getActionCommand().equals("Run")) {
if (chooseHeur.getSelectedItem()=="Nearest-Neighbour")
System.out.println(chooseHeur.getSelectedItem());
//points = new Points(toInt((String)chooseNum.getSelectedItem()));
//PlotArea.set(points);
PlotArea.setNNh(points);
PlotArea.repaint();

I AM USING SWING.
HERE IS MY CODE, HOPEFULLY ENOUGH TO UNDERSTAND THE PROBLEM.
class Plot extends Panel{
     public static int num;
     NNheuristic nnH;
     Closest_insertion CI;
     Points P;
     public static boolean useNNh= false;
     boolean useCI=false;
     boolean triangleDrawn = false;
     boolean CIupdate;
     void drawpoints (Graphics g)
         Graphics2D g2 = (Graphics2D) g;
         Graphics2D g3 = (Graphics2D) g;
         int i=1;
         g2.setColor(Color.red);
                if (P==null) return;
                else
                while (i<P.getSize())
                     Ellipse2D.Double vertices = new Ellipse2D.Double(P.x_coor,P.y_coor[i],10,10);
g2.fill(vertices);
i++;
g3.setColor(Color.MAGENTA);
Ellipse2D.Double initial = new Ellipse2D.Double(P.x_coor[0],P.y_coor[0],10,10);
g3.fill(initial);
System.out.println("No. of Vertices: " + P.getSize());
for(int k = 0; k < P.getSize(); k++)
System.out.println("x coordinate: " + P.x_coor[k] + ", " + "y coordinate :" + P.y_coor[k] );
// System.out.println("next:"+ P.x_coor[k+1]);
triangleDrawn = false;
void drawLineNNh(Graphics g){
Graphics2D g2 = (Graphics2D) g;
g2.setColor(Color.blue);
int i = 0;
if (P == null) return;
else
for(i=0; i<P.getSize(); i++)
Line2D.Double drawLine = new Line2D.Double(P.x_coor[nnH.seen[i]]+5, P.y_coor[nnH.seen[i]]+5, P.x_coor[nnH.seen[i+1]]+5,P.y_coor[nnH.seen[i+1]]+5);
Line2D.Double drawLastEdge = new Line2D.Double(P.x_coor[nnH.seen[P.getSize()-1]]+5, P.y_coor[nnH.seen[P.getSize()-1]]+5, P.x_coor[0]+5,P.y_coor[0]+5);
g2.drawString( " Total Distance : " + nnH.totalDistance , 10, 300);
g2.draw(drawLine);
g2.draw(drawLastEdge);
public void set (Points p)
P=p;
useNNh = false;
useCI = false;
public void setNNh(Points p)
nnH = new NNheuristic(p);
useNNh = true;
void frame (Graphics g)
g.setColor(Color.white);
          g.fillRect(0,0,size().width,size().height);
          g.setColor(Color.green);
          g.drawRect(0,0,579,280);
public void paint(Graphics g)
frame(g);
drawpoints(g);
if(useNNh)
drawLineNNh(g);
else if(useCI)
if(!CIupdate)
drawTriCI(g);
else
drawRestCI(g);
// drawLineNNh(g);
public void clear ()
     // remove the points and the graph.
P=null;
triangleDrawn = false;
code of my GUIpublic class TSP extends JFrame{
JButton run;
...................codes...........
TSP() {
...............................codes...........
run = new JButton ("Run");
run.setPreferredSize(new Dimension(113,30));
run.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent e) {
if (e.getActionCommand().equals("Run")) {
if (chooseHeur.getSelectedItem()=="Nearest-Neighbour")
System.out.println(chooseHeur.getSelectedItem());
//points = new Points(toInt((String)chooseNum.getSelectedItem()));
//PlotArea.set(points);
PlotArea.setNNh(points);
PlotArea.repaint();
else if(chooseHeur.getSelectedItem()=="Closest-Insertion")
PlotArea.setC_I(points);
PlotArea.repaint();
pane2.add(run);

How to draw a shape with line tool then fill with colour

How can i draw a shape with the line tool and then fill it with colour

Click and drag from one anchor point to the next, making sure that each new line segment begins where the last one ended. The Line Tool will snap onto the anchors.
Once you're done creating what looks like a closed path, the lines are still separate objects. To combine them into one path, select them all and press Ctrl/Cmd+J (for Join) or via the menu select Object > Path > Join.
The Pen Tool can be used in a similar manner, but each segment will be a continuation rather than a separate object. The last (closing) click will be indicated by a tiny circle on the mouse pointer.
If you make an open path, Ai will still "fill" it with a fill color by assuming a straight path between the last open anchor points. Individual straight paths, however, such as those drawn by the line tool, have no "inside", so they won't show the fill color even if you have assigned one.
Allen

Draw an arc with three point

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