How to draw multiple lines on LCD
Hi guys,
I want to use mouse draw multiple lines with a single stroke. Similar to the tool they use to draw sand patterns on a Zen Garden, as shown in the image.
I am not sure whether it is possible to achieve similar effect on LCD object, in which I hope to draw 4 lines together with certain gap between each other. I can add additional lines by offsetting (+ or -) the mouse position however this does not anticipate the angle of the drawing. Is there another way to achieve this effect?
Regards,
J
you´d have to calculate the angle all by yourself. i am just not sure offhand if it will be enough to interpolatre the results .. at a sharp corner one might need to create the turnaround artificially by rotation.
this is a starting point: convert to polar coords, remap, convert back:
cartopol is a very good idea. Keeping the phase the same and only offset the amplitude.
here's a better version, basically it gets the angle the mouse is traveling in (broom handle), rotates 90 degrees (broom), then creates offsets (r1, r2 etc) along that orthogonal axis, converts back to cartesian and adds these new coordinates to the original mouse position. needs a lot of smoothing for some reason (mouse jitter I guess)