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Thread: Reading a rectangle within a square

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  1. #1
    Join Date
    May 2015

    Reading a rectangle within a square

    I have a square and our API returrns values from the top left to right.

    Now along with those, I get the X, and Y values of those pixes. Lets say each Pixel is 10cm, I get the centre point of the pixel for each point. As of now I was not interested in the X, and Y, and I was juse storing the value at that pixel continuously from top to bottom ( and let to right) till the end. As I needed to put theese values from left to right from bottom to top.

    But now as per new requirement ,I donot need to store the entire square in the reverse order. But I get a small rectangle which fits in the square. I get the top bottom left corner co-ordinates of this rectangle (which is in yellow). Now from the array which has filled the square , i just have to fill those values which fall in the rectangle in the bottom to top order. (left to right)

    Name:  RectangleInRaster.jpg
Views: 118
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    functionA( std::vector<float>  &pathlossvalues,)
    		while (bContinue)
    				__int64 xLoss_cm, yLoss_cm;
    				float fSrcLossvAlue;
    				hSrcLoss = pISrcLossIter->GetNextFloat(&xLoss_cm, &yLoss_cm, &fSrcLossvAlue);
                                    // Currently just storing the value, But may be i need to store x, and y also
    				bContinue = hSrcLoss == S_OK;
    				ULONG nMaskedRasterID = 0;
    				ULONG pnRsltMaskedRasterHandle = 0;
    Last edited by pdk5; November 1st, 2019 at 02:02 PM.

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