ios地图sdk | 百度地图api sdk-凯发k8官方旗舰厅

nsstring*filepath =[[nsbundle mainbundle] pathforresource:@"haidian"oftype:@"txt"];
nsstring*pointsstring =[nsstring stringwithcontentsoffile:filepath encoding:nsutf8stringencoding error:nil];
nsarray<nsstring*>*pointsarray =[pointsstring componentsseparatedbystring:@"\n"];
bmkmappoint points[pointsarray.count];
for(nsuinteger i =0; i < pointsarray.count;i){
if([pointsarray[i] rangeofstring:@","].location !=nsnotfound){
nsarray<nsstring*>*tmppoints =[pointsarray[i] componentsseparatedbystring:@","];
            points[i]=bmkmappointmake([tmppoints.firstobject doublevalue],[tmppoints.lastobject doublevalue]);
}
}
bmkprismoverlay*_prism =[bmkprismoverlay prismoverlaywithpoints:points count:pointsarray.count];
    _prism.height=1000.f;
[_mapview addoverlay:_prism];

-(bmkoverlayview*)mapview:(bmkmapview*)mapview viewforoverlay:(id<bmkoverlay>)overlay {
if([overlay iskindofclass:[bmkprismoverlayclass]]){
bmkprismoverlayview*prismoverlayview =[[bmkprismoverlayview alloc] initwithprismoverlay:(bmkprismoverlay*)overlay];
if([overlay isequal:_prismoverlay]){
            prismoverlayview.sidefacecolor=[uicolor colorwithred:0green:0blue:0.5alpha:1.0];
            prismoverlayview.topfacecolor=[uicolor colorwithred:0.0green:0blue:0.5alpha:0.4];
return prismoverlayview;
}
return nil;
}
return nil;
}