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After zooming in on the map, the wind field doesn't look as smooth as a curve

Open sososi opened this issue 4 years ago • 1 comments

Describe your problem I want to show the wind field in the urban construction area, but the effect is not satisfactory image

The following effect is ideal image

What I want to do is to enlarge the map and see that the wind field is still smooth. I know it takes a lot of short enough connections to make the line look smooth.

**What i tried I noticed that there are three variables that affect the effect of presentation(pixelSize,speedFactor,lineWidth). I tried to change the values of these variables to achieve the desired effect, but failed. :( And I noticed that after the map was enlarged to a certain extent, cesium's scene.getPixelSize() method gets almost no change, which puzzles me.

Could you help me out or give me some guidance? Thanks anyway

sososi avatar Jan 13 '21 08:01 sososi

I believe that it is a precision problem, maybe precision of 32 bit floating number is not enough when the zoom level is very high. And unfortunately, WebGL does not provide double floating number data type. I am still in search of a good solution for this problem.

RaymanNg avatar Jan 15 '21 08:01 RaymanNg