2014/10/15 下午 10:12:48

iphone Programming Glossary: polygon

What does the Tiler Utilization statistic mean in the iPhone OpenGL ES instrument?

http://stackoverflow.com/questions/1287811/what-does-the-tiler-utilization-statistic-mean-in-the-iphone-opengl-es-instrumen

call to glVertexPointer in this case. You might also consider pursuing alternate lighting methods like DOT3 for your polygon data particularly the spheres but this requires special care to make sure that you aren 脌 making your rendering fragment..

OpenGL ES - How to Draw a filled Polygon?

http://stackoverflow.com/questions/3872464/opengl-es-how-to-draw-a-filled-polygon

on stack but I didn't find anything http stackoverflow.com questions 2842339 mapping irregular shapes or other polygons cartoons sprites to triangles in op I want to draw a filled polygon in OpenGL ES on iPad 2D don't need 3D I'm new to OpenGL.. 2842339 mapping irregular shapes or other polygons cartoons sprites to triangles in op I want to draw a filled polygon in OpenGL ES on iPad 2D don't need 3D I'm new to OpenGL OpenGL ES It seems simple on OpenGL but with ES with just can draw.. en.wikipedia.org wiki Polygon_triangulation WIKI http www.flipcode.com archives Efficient_Polygon_Triangulation.shtml polygon WITHOUT holes http www.cs.unc.edu ~dm CODE GEM chapter.html polygon WITH holes C code Solution I will try using polygon..

Programmatically creating Views in IOS (how does it work)?

http://stackoverflow.com/questions/4820094/programmatically-creating-views-in-ios-how-does-it-work

to the main window within my controller UIWindow window UIApplication sharedApplication .keyWindow window addSubview polygonView However if use drag a view in IB and change the class to my view class it shows up fine. Edit Added some code. This.. alloc initWithNumberOfSides numberOfSidesLable.text.integerValue minimumNumberOfSides 3 maximumNumberOfSides 12 polygonView PolygonView alloc initWithFrame CGRectMake 0 0 320 480 UIWindow window UIApplication sharedApplication .keyWindow polygonView.backgroundColor.. PolygonView alloc initWithFrame CGRectMake 0 0 320 480 UIWindow window UIApplication sharedApplication .keyWindow polygonView.backgroundColor UIColor blackColor window addSubview polygonView self updateInterface Part of my controller's updateInterface..

iPhone MKMapView - MKPolygon Issues

http://stackoverflow.com/questions/5474299/iphone-mkmapview-mkpolygon-issues

coords NULL NSUInteger coordsLen 0 How do we actually define an array of CLLocationCoordinate2d MKPolygon polygon MKPolygon polygonWithCoordinates coords count coordsLen mapView addOverlay polygon MKOverlayView mapView MKMapView mapView.. NULL NSUInteger coordsLen 0 How do we actually define an array of CLLocationCoordinate2d MKPolygon polygon MKPolygon polygonWithCoordinates coords count coordsLen mapView addOverlay polygon MKOverlayView mapView MKMapView mapView viewForOverlay.. of CLLocationCoordinate2d MKPolygon polygon MKPolygon polygonWithCoordinates coords count coordsLen mapView addOverlay polygon MKOverlayView mapView MKMapView mapView viewForOverlay id MKOverlay overlay MKPolygonView polygonView MKPolygonView alloc..

OpenGL-ES 2.0 VS OpenGL-ES 1.1, which is faster?

http://stackoverflow.com/questions/5682010/opengl-es-2-0-vs-opengl-es-1-1-which-is-faster

ES 1.1 but am wondering if there are speed gains to be found by switching to 2.0. Has anyone done any tests with large polygon count models I only want to render triangles that have different colors nothing fancy. However I am wanting to render about..

Showing Specific Region Using MapKit

http://stackoverflow.com/questions/8679499/showing-specific-region-using-mapkit

question To handle the map kit hides remaining part of the map requirement one thing you can do is create a black polygon overlay that covers the whole world with a cutout over Asia or wherever you like . For example where you initialize the.. 4 55 60 55 150 0 150 0 60 change or add coordinates and update count below as needed self.asiaOverlay MKPolygon polygonWithCoordinates asiaCoords count 4 CLLocationCoordinate2D worldCoords 4 90 180 90 180 90 180 90 180 MKPolygon worldOverlay.. asiaCoords count 4 CLLocationCoordinate2D worldCoords 4 90 180 90 180 90 180 90 180 MKPolygon worldOverlay MKPolygon polygonWithCoordinates worldCoords count 4 interiorPolygons NSArray arrayWithObject asiaOverlay the array can have more than..

Detect if CGPoint within polygon

http://stackoverflow.com/questions/8952476/detect-if-cgpoint-within-polygon

if CGPoint within polygon I have a set of CGPoints which make up a polygon shape how can I detect if a single CGPoint is inside or outside of the.. if CGPoint within polygon I have a set of CGPoints which make up a polygon shape how can I detect if a single CGPoint is inside or outside of the polygon Say the shape was a triangle and the CGPoint.. have a set of CGPoints which make up a polygon shape how can I detect if a single CGPoint is inside or outside of the polygon Say the shape was a triangle and the CGPoint was moving hoizontally how could I detect when it crossed the triangle line..