Figuring out coordinates

[mr339]

How to figure out the coordinates of a part of the image(for example: if there's a symbol in the middle of the image that i want to make clickable)? is it hit and trial or is there any documentation for it?

[davidjbradshaw]

Count pixels in the full sized image

Sent from my iPhone.

[mr339]

Count pixels in the full sized image -- Sent from my iPhone.

thanks, also what does the coordinates of rect in coor="10,10,30,10" mean? is it "x-coord, y-coor, length of rect, height of rect"?

[peacesoup]

I usually pull the image up in gimp and hover over where I want the map. Gimp gives a pixel based cursor position.

[NicolaiSoeborg]

what does the coordinates of rect in coords="10,10,30,10" mean?

For rect it is x1,y1,x2,y2 and then a rectangle will drawn between (x1, y1) and (x2, y2).

From the spec:

• x1: the distance from the left edge of the image to the left side of the rectangle
• y1: the distance from the top edge to the top side
• x2: the distance from the left edge to the right side
• y2: the distance from the top edge to the bottom side