see x,y coordinates of cursor on screen

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mdhall63

see x,y coordinates of cursor on screen

in General Discussion • Other • 1 year ago

I'm trying to help my son learn Processing. He really wants to create his own shapes, but it's very tedious to figure out the x, y coordinates of every vertex. Is there a way to move the mouse cursor to the spot where you want to put a point or vertex and see what the actual pixel coordinates are? Then he can take the coordinates and put them in his drawing routine to generate the shape he wants. Thanks.

Replies(3)

benja

Re: see x,y coordinates of cursor on screen

1 year ago

you mean somthing like this?

text("x: "+mouseX+" y: "+mouseY, 10, 15);

sansumbre..

Re: see x,y coordinates of cursor on screen

1 year ago

Nice suggestion; also consider moving the text with the cursor:

text( "x: " + mouseX + " y: " + mouseY, mouseX, mouseY );

Or only drawing when the mouse is pressed so you can leave a trail of labeled points (not clearing in draw):

void mousePressed(){
ellipse( mouseX, mouseY, 2, 2 );
text( "x: " + mouseX + " y: " + mouseY, mouseX + 2, mouseY );
}

Exercise for the reader:

Write a program that connects the dots. Hint: store the mousePressed positions in an array or ArrayList.

calsign

Re: see x,y coordinates of cursor on screen

1 year ago

People (namely Chrisir and myself) have created applets on OpenProcessing designed specifically for this purpose. See Chrisir's ( Shape Drawer - Multiple Shapes!) and mine ( Vertexator).

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