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Diffstat (limited to 'sci_gateway1/cpp/opencv_getTextSize.cpp')
| -rw-r--r-- | sci_gateway1/cpp/opencv_getTextSize.cpp | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/sci_gateway1/cpp/opencv_getTextSize.cpp b/sci_gateway1/cpp/opencv_getTextSize.cpp new file mode 100644 index 0000000..150b8ec --- /dev/null +++ b/sci_gateway1/cpp/opencv_getTextSize.cpp @@ -0,0 +1,188 @@ +/*************************************************** +Author : Sukul Bagai , Abhilasha Sancheti +**************************************************** +Usage : [size,baseline] = getTextSize("<input text>","<fontface>",fontscale,thickness); +***************************************************/ + +#include <numeric> +#include "opencv2/core/core.hpp" +#include "opencv2/highgui/highgui.hpp" +#include "opencv2/opencv.hpp" +#include <iostream> +using namespace cv; +using namespace std; +extern "C" +{ + #include "api_scilab.h" + #include "Scierror.h" + #include "BOOL.h" + #include <localization.h> + #include <sciprint.h> + #include "../common.h" + + int opencv_getTextSize(char *fname, unsigned long fname_len) + { + + SciErr sciErr; + int intErr = 0; + int iRows=0,iCols=0; + int *piAddr = NULL; + int *piAddr2 = NULL; + int *piAddr3 = NULL; + int *piAddr4 = NULL; + int *piLen = NULL; + int *piLen2 = NULL; + char **pstData = NULL; + char **pstData2 = NULL; + double font_scale = 0,thickness = 0; + int i; + + //checking input argument + CheckInputArgument(pvApiCtx, 4, 4); + CheckOutputArgument(pvApiCtx, 2, 2) ; + + //for string + sciErr = getVarAddressFromPosition(pvApiCtx,1,&piAddr); + if (sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + //Now, we will retrieve the string from the input parameter. For this, we will require 3 calls + //first call to retrieve dimensions + sciErr = getMatrixOfString(pvApiCtx, piAddr, &iRows, &iCols, NULL, NULL); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + piLen = (int*)malloc(sizeof(int) * iRows * iCols); + //second call to retrieve length of each string + sciErr = getMatrixOfString(pvApiCtx, piAddr, &iRows, &iCols, piLen, NULL); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + + pstData = (char**)malloc(sizeof(char*) * iRows * iCols); + for(i = 0 ; i < iRows * iCols ; i++) + { + pstData[i] = (char*)malloc(sizeof(char) * (piLen[i] + 1));//+ 1 for null termination + } + //third call to retrieve data + sciErr = getMatrixOfString(pvApiCtx, piAddr, &iRows, &iCols, piLen, pstData); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + + //for fontface + sciErr = getVarAddressFromPosition(pvApiCtx,2,&piAddr2); + if (sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + //Now, we will retrieve the string from the input parameter. For this, we will require 3 calls + //first call to retrieve dimensions + sciErr = getMatrixOfString(pvApiCtx, piAddr2, &iRows, &iCols, NULL, NULL); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + piLen2 = (int*)malloc(sizeof(int) * iRows * iCols); + //second call to retrieve length of each string + sciErr = getMatrixOfString(pvApiCtx, piAddr2, &iRows, &iCols, piLen2, NULL); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + + pstData2 = (char**)malloc(sizeof(char*) * iRows * iCols); + for(i = 0 ; i < iRows * iCols ; i++) + { + pstData2[i] = (char*)malloc(sizeof(char) * (piLen2[i] + 1));//+ 1 for null termination + } + //third call to retrieve data + sciErr = getMatrixOfString(pvApiCtx, piAddr2, &iRows, &iCols, piLen2, pstData2); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + + //for value of font scale + sciErr = getVarAddressFromPosition(pvApiCtx,3,&piAddr3); + if (sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + intErr = getScalarDouble(pvApiCtx, piAddr3, &font_scale); + if(intErr) + return intErr; + + //for value of thickness + sciErr = getVarAddressFromPosition(pvApiCtx,4,&piAddr4); + if (sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + intErr = getScalarDouble(pvApiCtx, piAddr4, &thickness); + if(intErr) + return intErr; + + int fontFace; + + if(strcmp(pstData2[0],"FONT_HERSHEY_SIMPLEX")==0) + fontFace = FONT_HERSHEY_SIMPLEX; + else if (strcmp(pstData2[0],"FONT_HERSHEY_PLAIN")==0) + fontFace= FONT_HERSHEY_PLAIN; + else if (strcmp(pstData2[0],"FONT_HERSHEY_DUPLEX")==0) + fontFace= FONT_HERSHEY_DUPLEX; + else if (strcmp(pstData2[0],"FONT_HERSHEY_COMPLEX")==0) + fontFace= FONT_HERSHEY_COMPLEX; + else if (strcmp(pstData2[0],"FONT_HERSHEY_TRIPLEX")==0) + fontFace = FONT_HERSHEY_TRIPLEX; + else if (strcmp(pstData2[0],"FONT_HERSHEY_COMPLEX_SMALL")==0) + fontFace = FONT_HERSHEY_COMPLEX_SMALL; + else if (strcmp(pstData2[0],"FONT_HERSHEY_SCRIPT_SIMPLEX")==0) + fontFace = FONT_HERSHEY_SCRIPT_SIMPLEX; + else if (strcmp(pstData2[0],"FONT_HERSHEY_SCRIPT_COMPLEX")==0) + fontFace = FONT_HERSHEY_SCRIPT_COMPLEX; + + int baseline; + Size sz = getTextSize(pstData[0],fontFace,font_scale,thickness,&baseline); + double tempsize[2]; + tempsize[0]=sz.width; + tempsize[1]=sz.height; + double returnbaseline = (double)baseline; + + sciErr = createMatrixOfDouble(pvApiCtx,nbInputArgument(pvApiCtx)+1,1,2,tempsize); + if(sciErr.iErr) + { + printError(&sciErr,0); + return 0; + } + sciErr = createMatrixOfDouble(pvApiCtx,nbInputArgument(pvApiCtx)+2,1,1,&returnbaseline); + if(sciErr.iErr) + { + printError(&sciErr,0); + return 0; + } + + //Assigning the list as the Output Variable + AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1; + AssignOutputVariable(pvApiCtx, 2) = nbInputArgument(pvApiCtx) + 2; + //Returning the Output Variables as arguments to the Scilab environment + ReturnArguments(pvApiCtx); + return 0; + + } +/* ==================================================================== */ +}
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