Calculation of Blips on a Custom radar

[KryPtoHolYx]

Hi,

So i need Help by calculating the position from blips on a image ( the map )

So is started like this

  
        local radarTexture = dxCreateTexture("radar.jpg") 
        local imgW,imgH    = dxGetMaterialSize(radarTexture) 
        local width, height = 1200,1200 
        local blipRenderTarget= dxCreateRenderTarget( s[1]*1200/1440, s[2]*1200/900,true )  
    addEventHandler ("onClientHUDRender",root, 
            function () 
                dxSetRenderTarget(BLIPS,true)    
            dxDrawImage ( 0,0,1200,1200, blipTexture)        
                   for k,v in ipairs(getElementsByType ("blip")) do 
                        local x,y = getElementPosition(v) 
                                local b_x = x / (6000/imgW) + imgW/2 - width*0.73 
                                local b_y = y / (-6000/imgH) + imgH/2 - height*0.74 
                                local blip_icon = getBlipIcon  ( v) 
                                blip_size = 40 
                              dxDrawImage ( b_x-blip_size/2,b_y-blip_size/2,blip_size/2,blip_size/2, "blips/"..blip_icon..".png") 
                    end 
                dxSetRenderTarget()    
   
        dxDrawImage (500,0,imgW/4,imgH/4, blipRenderTarget)  
    end)     
  

So, i need now a way to calculate where the "blip" is on the image.

Hope you guys understood my question.

Regards

[WhoAmI]

viewtopic.php?f=91&t=71784

maybe that would help you

[KryPtoHolYx]

Didn´t helped me at all, i build mine with rotation, so it may be different idk.

at all, thanks for posting this.

Regards

Edited March 5, 2014 by Guest

[Bonsai]

So its not about making blips be shown at right position?

You just want to get their position? At some point you set their position, so you could just save it there.

[KryPtoHolYx]

@Bonsai: I mean it like this, its about getting the position from the blip on my radar.

atm it looks like this

Regards

[Bonsai]

Well, I don't know about the rest of your script.

But I guess you can easily get the radar position of your player blip, the radar position of that other blip, do some math and use your players world position to get the blips world position.

[KryPtoHolYx]

Thanks for the Help, i got it.

Now i draw the map on a renderTarget then draw every blip/radararea on it, and then start drawing the main thing.

Regards