Missing InvTransform(in:float[],out:float[])

Monkey Forums/Monkey Bug Reports/Missing InvTransform(in:float[],out:float[])

Skn3 (Posted 2013) [#1]

[edit] dunno what happend to topic title. Should have been Missing InvTransform(in:float[],out:float[]) Another one of these threads. There is no way to call invtransform without creating a new array. Need a new overload: Function InvTransform:Void(coords:Float[], out:Float[]) Local m00#= context.ix Local m10#= context.jx Local m20#= context.tx Local m01#= context.iy Local m11#= context.jy Local m21#= context.ty Local det#= m00*m11 - m01*m10 Local idet#= 1.0/det Local r00# = m11 * idet Local r10# = -m10 * idet Local r20# = (m10*m21 - m11*m20) * idet Local r01# = -m01 * idet Local r11# = m00 * idet Local r21# = (m01*m20 - m00*m21) * idet 'Local r22# = (m00*m11 - m01*m10) * idet 'what do I do with this? Local ix#=r00,jx#=r10,tx#=r20,iy#=r01,jy#=r11,ty#=r21 For Local i=0 Until coords.Length-1 Step 2 Local x#=coords[i],y#=coords[i+1] out[i]= x*ix + y*jx + tx out[i+1]= x*iy + y*jy + ty Next End

Skn3 (Posted 2013) [#2]

This could also be quite handy? Function InvTransform:Void(x:Float, y:Float, out:Float[]) Local m00#= context.ix Local m10#= context.jx Local m20#= context.tx Local m01#= context.iy Local m11#= context.jy Local m21#= context.ty Local det#= m00*m11 - m01*m10 Local idet#= 1.0/det Local r00# = m11 * idet Local r10# = -m10 * idet Local r20# = (m10*m21 - m11*m20) * idet Local r01# = -m01 * idet Local r11# = m00 * idet Local r21# = (m01*m20 - m00*m21) * idet 'Local r22# = (m00*m11 - m01*m10) * idet 'what do I do with this? Local ix#=r00,jx#=r10,tx#=r20,iy#=r01,jy#=r11,ty#=r21 out[0] = x * ix + y * jx + tx out[1] = x * iy + y * jy + ty End