prepareScale method
Scales the stroke width of this RenderTheme by the given factor for a given zoom level
@param scaleFactor the factor by which the stroke width should be scaled. @param zoomLevel the zoom level to which this is applied.
Implementation
void prepareScale(int zoomLevel) {
if (zoomLevelRulesList.containsKey(zoomLevel)) return;
List<Rule> rules = [];
for (Rule rule in rulesList) {
Rule? r = rule.matchForZoomLevel(zoomLevel);
if (r != null) {
rules.add(r);
}
}
zoomLevelRulesList[zoomLevel] = rules;
}