/usr/include/ossim/imaging/ossimRgbImage.h is in libossim-dev 1.7.21-4.
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//
// License: See top level LICENSE.txt file.
//
// Author: Garrett Potts
//
//*************************************************************************
// $Id: ossimRgbImage.h 11830 2007-10-10 13:34:25Z dburken $
#ifndef ossimRgbImage_HEADER
#define ossimRgbImage_HEADER
#include <vector>
#include <ossim/base/ossimReferenced.h>
#include <ossim/base/ossimIpt.h>
#include <ossim/imaging/ossimImageData.h>
class OSSIM_DLL ossimRgbImage : public ossimReferenced
{
public:
ossimRgbImage();
/**
* @param currentImageData The tile to annotate or draw to.
* @note This can be any number of bands; however, will only draw
* to up to 3.
*/
ossimRgbImage(ossimRefPtr<ossimImageData>& currentImageData);
virtual ~ossimRgbImage();
/**
* Will construct a new single band image data object.
*/
virtual void createNewGrey(ossim_int32 width, ossim_int32 height);
/**
* Will construct a new 3 band rgb data object.
*/
virtual void createNewTrueColor(ossim_int32 width, ossim_int32 height);
/**
* Will initilize any pre-computations that are needed.
* Example: setting up the origin for adjustments and
* setting up the offsets.
*/
virtual void initialize();
/**
* This will plot a pixel and will do inside outside compares.
* This assumes the pixel has already been put into a relative
* 0,0 to the upper left corner of the image data.
*
* example: if the upperleft corner or origin of the image was
* 34, 55 then it assumes that the points passed in are
* already relative to that corner not absolute.
*/
inline void slowPlotPixel(ossim_int32 x,
ossim_int32 y,
ossim_uint8 r,
ossim_uint8 g,
ossim_uint8 b);
/**
* same thing as slowPlotPixel but without the inside outside compare
*/
inline void fastPlotPixel(ossim_int32 x,
ossim_int32 y,
ossim_uint8 r,
ossim_uint8 g,
ossim_uint8 b);
/**
* All the drawing algorithms have thickness. So you can draw a line
* that has thickness of 3 pixels if you want. Note: the thickness is in
* pixels
*/
void setThickness(ossim_int32 thickness);
/** @return The thickness. */
ossim_int32 getThickness() const;
/**
* Allows you to change the image data that this RgbImage object
* operates on. You can specify if the image owns the data or not.
* if it doesn't own the data then it will not destroy it when the
* data is changed to a different data object or if this object
* is deleted.
*
* @param imageData The tile to annotate or draw to.
*
* @note This can be any number of bands; however, will only draw
* to up to 3.
*/
void setCurrentImageData(ossimRefPtr<ossimImageData>& imageData);
/**
* Will return the image data.
*/
ossimRefPtr<ossimImageData> getImageData();
/**
* We will cut and paste the code from
* drawFilledPolygon(ossimIpt *p, int n).
*/
void drawFilledPolygon(const std::vector<ossimDpt>& p);
/**
* We will cut and paste the code from
* drawFilledPolygon(ossimIpt *p, int n).
*/
void drawFilledPolygon(const std::vector<ossimIpt>& p);
/**
* This will draw a polygon and fill it with the specified color.
*/
void drawFilledPolygon(ossimDpt *p,
int n);
/**
* This will draw a polygon and fill it with the specified color.
*/
void drawFilledPolygon(ossimIpt *p,
int n);
/**
* will draw an arc. The cx and cy specifies the center point in image
* space. The parameters w, h are the width and height of the arc.
* The s and e are the starting and ending angles. So if I want to
* draw a complete circle at point 45, 45 with width 10 and height 23 then
* we set the angles s =0 and e = 360:
* drawArc(45, 45, 10, 23, 0, 360).
*
*/
void drawArc(double cx,
double cy,
double w,
double h,
double s,
double e);
/**
* will draw an arc. The cx and cy specifies the center point in image
* space. The parameters w, h are the width and height of the arc.
* The s and e are the starting and ending angles. So if I want to
* draw a complete circle at point 45, 45 with width 10 and height 23 then
* we set the angles s =0 and e = 360:
* drawArc(45, 45, 10, 23, 0, 360).
*
*/
void drawArc(int cx,
int cy,
int w,
int h,
int s,
int e);
/**
* Draws a filled ellipse. Rot is the major axis rotation from up.
* rot (rotaition) is in radians.
*/
void drawFilledEllipse(int cx,
int cy,
int sminor,
int smajor,
double rot);
/**
* Draws an ellipse. Rot is the major axis rotation from up.
* rot (rotation is in radians).
*/
void drawEllipse(int cx,
int cy,
int sminor,
int smajor,
double rot,
bool drawAxes = false);
/**
* This will draw a filled arc. See drawArc for documentation of
* parameters.
*/
void drawFilledArc(double cx,
double cy,
double w,
double h,
double s,
double e);
/**
* This will draw a filled arc. See drawArc for documentation of
* parameters.
*/
void drawFilledArc(int cx,
int cy,
int w,
int h,
int s,
int e);
void drawPolygon(const std::vector<ossimDpt>& p);
void drawPolygon(const std::vector<ossimIpt>& p);
/**
* Draws a polygon. The first argument is an array of points. The second
* argument is the number of points and the rest are the rgb color values.
* theColor used is set by the setDrawColor.
*/
void drawPolygon(ossimDpt *p,
int n);
/**
* Draws a polygon. The first argument is an array of points. The second
* argument is the number of points and the rest are the rgb color values.
* theColor used is set by the setDrawColor.
*/
void drawPolygon(ossimIpt *p,
int n);
/**
* About all the draw routines will call draw line. it takes a start and
* an end point and a color value.
* theColor used is set by the setDrawColor.
*/
void drawLine(double x1,
double y1,
double x2,
double y2);
/**
* About all the draw routines will call draw line. it takes a start and
* an end point and a color value.
* theColor used is set by the setDrawColor.
*/
void drawLine(int x1,
int y1,
int x2,
int y2);
/**
* About all the draw routines will call draw line. it takes a start and
* an end point and a color value.
* theColor used is set by the setDrawColor.
*/
void drawLine(const ossimIpt& start,
const ossimIpt& end);
/**
* About all the draw routines will call draw line. it takes a start and
* an end point and a color value.
* theColor used is set by the setDrawColor.
*/
void drawLine(const ossimDpt& start,
const ossimDpt& end);
/**
* Will draw a rectangle. The color used is set by setDrawColor.
*/
void drawRectangle(double x1,
double y1,
double x2,
double y2);
/**
* Will draw a rectangle. The color used is set by setDrawColor.
*/
void drawRectangle(int x1,
int y1,
int x2,
int y2);
/**
* Will draw a filled rectangle with the current draw color.
* Use setDrawColor to set it.
*/
void drawFilledRectangle(double x1,
double y1,
double x2,
double y2);
/**
* Will draw a filled rectangle with the current draw color.
* Use setDrawColor to set it.
*/
void drawFilledRectangle(int x1,
int y1,
int x2,
int y2);
/**
* Will fill the entire data object with the specified color set in
* setDrawColor.
*/
void fill();
void setDrawColor(ossim_uint8 r = 255,
ossim_uint8 g = 255,
ossim_uint8 b = 255);
void getDrawColor(ossim_uint8& rCurr,
ossim_uint8& gCurr,
ossim_uint8& bCurr);
/**
* Will take the point passed in and translate
* to a 0,0.
* Example:
* Let's say that we have origin 45,34 for the
* image's upper left corner. then a call to this
* method will translate the point passed in
* x-45, y-34
*/
// inline void translateToOrigin(ossim_int32& x, ossim_int32& y);
/**
* Will take the point passed in and translate
* to a 0,0.
* Example:
* Let's say that we have origin 45,34 for the
* image's upper left corner. then a call to this
* method will translate the point passed in
* x-45, y-34
*/
// inline void translateToOrigin(ossimDpt& pt);
const ossimRefPtr<ossimImageData> getImageData()const;
protected:
/**
* This object operates on the ossimImageData. Note the
* ossimImageData is a band separate so the bands follow sequentially:
* all the reds followed by all the blues followed by all greens
*/
ossimRefPtr<ossimImageData> theImageData;
/**
* This will hold precomputed offsets to the
* start of each row. This will get rid of a multiplication
* per access. Since we will be accessing on a per pixel basis
* this will be needed.
*/
ossim_int32* theOffsets;
/**
* This is a fast access to the start of each band.
*/
ossim_uint8* theBands[3];
/**
* This is here so we don't have to call theWidth and theHeight
* of the ossimImageData.
*/
ossim_int32 theWidth;
/**
* This is here so we don't have to call theWidth and theHeight
* of the ossimImageData.
*/
ossim_int32 theHeight;
/**
* Holds the draw thickness.
*/
ossim_int32 theThickness;
/**
* The red component of the color used in drawing the shapes
*/
ossim_uint8 theRed;
/**
* The green component of the color used in drawing the shapes
*/
ossim_uint8 theGreen;
/**
* The blue component of the color used in drawing the shapes
*/
ossim_uint8 theBlue;
};
inline void ossimRgbImage::slowPlotPixel(ossim_int32 x,
ossim_int32 y,
ossim_uint8 r,
ossim_uint8 g,
ossim_uint8 b)
{
if((x > -1) && (x < theWidth) &&
(y > -1) && (y < theHeight))
{
theBands[0][theOffsets[y]+x] = r;
theBands[1][theOffsets[y]+x] = g;
theBands[2][theOffsets[y]+x] = b;
}
}
inline void ossimRgbImage::fastPlotPixel(ossim_int32 x,
ossim_int32 y,
ossim_uint8 r,
ossim_uint8 g,
ossim_uint8 b)
{
theBands[0][theOffsets[y]+x] = r;
theBands[1][theOffsets[y]+x] = g;
theBands[2][theOffsets[y]+x] = b;
}
#endif
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