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POC++/LabVIEW interop: error extracting data from LabVIEW array/ unexpected type conversion in function parameter
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  1. POC++/LabVIEW interop: error extracting data from LabVIEW array/ unexpected type conversion in function parameter
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    copied!<p>I'm using <a href="http://msmvps.com/blogs/vandooren/archive/2006/08/10/Fun-with-template-classes_3A00_-Manipulating-LabVIEW-arrays-in-C_2B002B002C00_-part-3.aspx" rel="nofollow">Cluebat-man's LabVIEW-C++ array interoperability class,</a> and I'm getting an error extracting the data from from the array. Or, rather, the data extraction appears to succeed, but build fails when I try to use the data a line later.</p> <p>(Context: The program is designed to implement Manjunath et al's peer-group filtering; the function is designed to extract the hue plane of an image. I'm fairly certain it's not a problem with the specific function, aside from perhaps its declaration of parameters, because the same problem crops up later in the program when I try to use the results from <code>getHuePlane()</code>)</p> <pre><code>#ifndef IO_TYPE //Normal arrays or LabVIEW? #define I_TYPE /* int* */ CLvArrayHandlePtr&lt;unsigned __int32, 2&gt; #define O_TYPE /* int* */ CLvArrayHandlePtr&lt;unsigned __int8, 2&gt; #define IO_TYPE #endif #ifndef USING_LABVIEW_DEFINED #define USING_LABVIEW //remove if not #define USING_LABVIEW_DEFINED #endif </code></pre> <p>Extraction and function call:</p> <pre><code>#include "LvArrayIndexer.h" #include "LvArrayTemplate.h" O_TYPE pgf(I_TYPE HSLimage, int width, int height, int halfWindowSize, int noiseThreshold) { #ifdef USING_LABVIEW size_t size[2] = {width, height}; HSLimage.Resize(size); CLvArrayIndexer&lt;unsigned __int32, 2 &gt; baseImgIndexer(HSLimage); CLvArrayHandlePtr&lt;unsigned __int8, 2 &gt; hueImage; hueImage.Resize(size); CLvArrayIndexer&lt;unsigned __int8, 2 &gt; hueImgIndexer(hueImage); int LvImageData[width][height]; #else int hueImage[width][height]; #endif int hueImageData[width][height]; int windowSize = 2 * halfWindowSize - 1; int windowLength = windowSize * windowSize; int window[windowSize][windowSize]; int flattenedWindow[windowLength]; vector&lt;int&gt; peerGroup; int currentValue; #ifdef USING_LABVIEW for (int x = 0; x &lt; width; x++) for (int y = 0; y &lt; height; y++) LvImageData[x][y] = baseImgIndexer[x][y]; hueImageData = getHuePlane(LvImageData, width, height); #else hueImageData = getHuePlane(HSLimage, width, height); #endif //Function continues } </code></pre> <p>Function definition:</p> <pre><code>int* getHuePlane(int* HSLimage, int width, int height) { int hueImage[width][height]; double calcValue; /*Get hue plane *AL HU SA LU -&gt;AL HU.SA LU -&gt; AL HUF *AL HU -&gt; AL.HU -&gt; 0.HU -&gt; HU */ for (int x = 0; x &lt; width; x++) { for (int y = 0; y &lt; height; y++) { calcValue = int(double(HSLimage[x][y]) / 65536); //A-H-S-L; removes S-L calcValue = (calcValue / 256) - int(calcValue / 256); calcValue = calcValue * 256; hueImage[x][y] = int(calcValue); } } return hueImage; } </code></pre> <p>The error is:</p> <pre><code>pgf.cpp:88:58: error: cannot convert 'int (*)[(((unsigned int)(((int)height) + -0x000000001)) + 1)]' to 'int*' for argument '1' to 'int* getHuePlane(int*, int, int)' </code></pre> <p>System information:</p> <ul> <li>IDE:Netbeans 7.1</li> <li>Compiler: MinGW (gcc v4.6.2)</li> <li>Make: GNU make 3.79.1</li> <li>System: Windows 7 version 6.1</li> </ul>
 

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