MaplyMapViewController click problem

[songyuyang0918]

Dear developers! There are many points or lines on my map (which may cross), and I now want to gesture to click somewhere to expand the pixel area I click (40*40) to get all the MaplyVectorObject objects in that area. Rather than maplyViewController: didSelect: atLoc: onScreen: only returns an object. Can this framework be implemented? Do you have any ideas to share? Thank you very much.

[mousebird]

Use the allSelect variant of the delegate method.

[songyuyang0918]

Dear developers, I am using 2D map mode, and there is no way to return all the objects you have mentioned. I tried to change the selectLabelsAndMarkerForScreenPoint userDidTapLayerThread and get the result I want. Don't know I'm safe? Another question: Gestures to click on objects are not very accurate. I try to modify pointNearLinear: short: inViewController The value of distance is modified. But the effect is not so obvious. I want to say that you are judging by the distance of the click range object, which is true between points. But if it's drawing lines or drawing faces, I think it's not very friendly.

[mousebird]

Use this delegate method to get all the nearby objects:

• (void)maplyViewController:(MaplyViewController __nonnull)viewC allSelect:(NSArray __nonnull)selectedObjs atLoc:(MaplyCoordinate)coord onScreen:(CGPoint)screenPt;

[songyuyang0918]

Do you use the distance between points to screen, is the intersection between drawing lines and drawing surfaces more accurate, or do you have a more accurate screening method?

[mousebird]

Distance is in screen coordinates for points, and I believe lines as well. For polygons it's a point in polygon test.