CZML model disable interpolation

CesiumJS
1

How to disable interpolation of a CZML model?

2

Hi @fation - does this thread answer your question? - Stopping CZML data interpolation - #2 by Matt_Amato

The suggestion there was to use the availability property - here’s a Sandcastle example.

3

I have done this way but i am using a model and a polygon they move along, and the way the model is moving is showing a flickering . For the polygon this is not happening. The poligon looks like is updating the position and the model looks like is destroyed and recreated.

4

Hm, that doesn’t sound right… could you please post a Sandcastle example of your code?

6

Test

It happens when the viewer animates for the first time.

7

Have you tested?

8

@fation I believe this is happening because the model is being loaded from scratch at each interval. We have an example multi-part CZML Sandcastle that looks similar to what you’re doing. A few things of note -

  • the model is only loaded in the first (part1) .czml file
  • note the logic to use a preloadTimeInSeconds to load czml slightly before it’s needed:
partsToLoad
    .filter(function (part) {
      return (
        !part.requested &&
        timeOffset >= part.range[0] - preloadTimeInSeconds &&
        timeOffset <= part.range[1]
      );
    })
    .forEach(function (part) {
      processPart(part);
    });

Let us know if you have any questions!

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