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Added working files for imagery overlay in 3D view perspective

QGC4.4
hengli 15 years ago
parent
839ae9abcb
commit
6ab246593e
5 changed files with 536 additions and 2 deletions
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  1. 8
      qgroundcontrol.pro
  2. 365
      src/ui/map3D/Imagery.cc
  3. 66
      src/ui/map3D/Imagery.h
  4. 54
      src/ui/map3D/Texture.cc
  5. 45
      src/ui/map3D/Texture.h

8
qgroundcontrol.pro
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@ -164,7 +164,9 @@ HEADERS += src/MG.h \ @@ -164,7 +164,9 @@ HEADERS += src/MG.h \
src/ui/map3D/Q3DWidget.h \
src/ui/map3D/CheetahModel.h \
src/ui/map3D/CheetahGL.h \
src/ui/map3D/QMap3DWidget.h
src/ui/map3D/QMap3DWidget.h \
src/ui/map3D/Imagery.h \
src/ui/map3D/Texture.h
SOURCES += src/main.cc \
src/Core.cc \
src/uas/UASManager.cc \
@ -233,7 +235,9 @@ SOURCES += src/main.cc \ @@ -233,7 +235,9 @@ SOURCES += src/main.cc \
src/ui/map3D/Q3DWidget.cc \
src/ui/map3D/CheetahModel.cc \
src/ui/map3D/CheetahGL.cc \
src/ui/map3D/QMap3DWidget.cc
src/ui/map3D/QMap3DWidget.cc \
src/ui/map3D/Imagery.cc \
src/ui/map3D/Texture.cc
RESOURCES = mavground.qrc
# Include RT-LAB Library

365
src/ui/map3D/Imagery.cc
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@ -0,0 +1,365 @@ @@ -0,0 +1,365 @@
#include "Imagery.h"
#include <cmath>
#include <sstream>
//for street-maps to:
//http://mt1.google.com/mt?&x=%d&y=%d&z=%d
//for satellite-maps to:
//http://khm.google.com/kh?&x=%d&y=%d&zoom=%d
//for topographic-maps:
//http://mt.google.com/mt?v=app.81&x=%d&y=%d&zoom=%d
const double WGS84_A = 6378137.0;
const double WGS84_ECCSQ = 0.00669437999013;
Imagery::Imagery()
{
}
void
Imagery::setImageryType(ImageryType type)
{
currentImageryType = type;
}
void
Imagery::setOffset(double xOffset, double yOffset)
{
}
void
Imagery::setUrl(std::string url)
{
}
void
Imagery::prefetch2D(double windowWidth, double windowHeight,
double zoom, double xOrigin, double yOrigin,
double viewXOffset, double viewYOffset,
const std::string& utmZone)
{
double x1 = xOrigin + viewXOffset - windowWidth / 2.0 / zoom;
double y1 = yOrigin + viewYOffset - windowHeight / 2.0 / zoom;
double xc = xOrigin + viewXOffset;
double yc = yOrigin + viewYOffset;
double x2 = xOrigin + viewXOffset + windowWidth / 2.0 / zoom;
double y2 = yOrigin + viewYOffset + windowHeight / 2.0 / zoom;
double imageResolution;
if (currentImageryType == SATELLITE)
{
imageResolution = 1.0;
while (imageResolution * 3.0 / 2.0 < 1.0 / zoom)
{
imageResolution *= 2.0;
}
if (imageResolution > 512.0)
{
imageResolution = 512.0;
}
}
}
void
Imagery::draw2D(double windowWidth, double windowHeight,
double zoom, double xOrigin, double yOrigin,
double viewXOffset, double viewYOffset,
const std::string& utmZone)
{
}
void
Imagery::prefetch3D(double radius, double imageResolution,
double xOrigin, double yOrigin,
double viewXOffset, double viewYOffset,
const std::string& utmZone)
{
}
void
Imagery::draw3D(double radius, double imageResolution,
double xOrigin, double yOrigin,
double viewXOffset, double viewYOffset,
const std::string& utmZone)
{
}
bool
Imagery::update(void)
{
return true;
}
void
Imagery::drawTexture3D(const TexturePtr& t,
float x1, float y1, float x2, float y2,
bool smooth)
{
if (t.isNull() == 0)
{
return;
}
if (t->getState() == Texture::REQUESTED)
{
glBegin(GL_LINE_LOOP);
glColor3f(0.0f, 0.0f, 1.0f);
glVertex2f(x1, y1);
glVertex2f(x2, y1);
glVertex2f(x2, y2);
glVertex2f(x1, y2);
glEnd();
return;
}
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, t->getTextureId());
float dx, dy;
if (smooth)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
dx = 1.0f / (2.0f * t->getTextureWidth());
dy = 1.0f / (2.0f * t->getTextureHeight());
}
else
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
dx = 0.0f;
dy = 0.0f;
}
glColor3f(1.0f, 1.0f, 1.0f);
glBegin(GL_QUADS);
glTexCoord2f(dx, t->getMaxV() - dy);
glVertex2f(x1, y1);
glTexCoord2f(t->getMaxU() - dx, t->getMaxV() - dy);
glVertex2f(x2, y1);
glTexCoord2f(t->getMaxU() - dx, dy);
glVertex2f(x2, y2);
glTexCoord2f(dx, dy);
glVertex2f(x1, y2);
glEnd();
glDisable(GL_TEXTURE_2D);
}
void
Imagery::UTMtoTile(double northing, double easting, const std::string& utmZone,
double imageResolution, int32_t& tileX, int32_t& tileY,
int32_t& zoomLevel)
{
double latitude, longitude;
UTMtoLL(northing, easting, utmZone, latitude, longitude);
zoomLevel = 17 - static_cast<int32_t>(rint(log2(imageResolution)));
int32_t numTiles = static_cast<int32_t>(exp2(static_cast<double>(zoomLevel)));
double x = longitude / 180.0;
double rad = latitude * M_PI / 180.0;
double y = -log(tan(rad) + 1.0 / cos(rad));
tileX = static_cast<int32_t>((x + 1.0) / 2.0 * numTiles);
tileY = static_cast<int32_t>((y + M_PI) / (2.0 * M_PI) * numTiles);
}
char
Imagery::UTMLetterDesignator(double latitude)
{
// This routine determines the correct UTM letter designator for the given latitude
// returns 'Z' if latitude is outside the UTM limits of 84N to 80S
// Written by Chuck Gantz- chuck.gantz@globalstar.com
char letterDesignator;
if ((84.0 >= latitude) && (latitude >= 72.0)) letterDesignator = 'X';
else if ((72.0 > latitude) && (latitude >= 64.0)) letterDesignator = 'W';
else if ((64.0 > latitude) && (latitude >= 56.0)) letterDesignator = 'V';
else if ((56.0 > latitude) && (latitude >= 48.0)) letterDesignator = 'U';
else if ((48.0 > latitude) && (latitude >= 40.0)) letterDesignator = 'T';
else if ((40.0 > latitude) && (latitude >= 32.0)) letterDesignator = 'S';
else if ((32.0 > latitude) && (latitude >= 24.0)) letterDesignator = 'R';
else if ((24.0 > latitude) && (latitude >= 16.0)) letterDesignator = 'Q';
else if ((16.0 > latitude) && (latitude >= 8.0)) letterDesignator = 'P';
else if (( 8.0 > latitude) && (latitude >= 0.0)) letterDesignator = 'N';
else if (( 0.0 > latitude) && (latitude >= -8.0)) letterDesignator = 'M';
else if ((-8.0 > latitude) && (latitude >= -16.0)) letterDesignator = 'L';
else if ((-16.0 > latitude) && (latitude >= -24.0)) letterDesignator = 'K';
else if ((-24.0 > latitude) && (latitude >= -32.0)) letterDesignator = 'J';
else if ((-32.0 > latitude) && (latitude >= -40.0)) letterDesignator = 'H';
else if ((-40.0 > latitude) && (latitude >= -48.0)) letterDesignator = 'G';
else if ((-48.0 > latitude) && (latitude >= -56.0)) letterDesignator = 'F';
else if ((-56.0 > latitude) && (latitude >= -64.0)) letterDesignator = 'E';
else if ((-64.0 > latitude) && (latitude >= -72.0)) letterDesignator = 'D';
else if ((-72.0 > latitude) && (latitude >= -80.0)) letterDesignator = 'C';
else letterDesignator = 'Z'; //This is here as an error flag to show that the Latitude is outside the UTM limits
return letterDesignator;
}
void
Imagery::LLtoUTM(const double latitude, const double longitude,
double& utmNorthing, double& utmEasting, std::string& utmZone)
{
// converts lat/long to UTM coords. Equations from USGS Bulletin 1532
// East Longitudes are positive, West longitudes are negative.
// North latitudes are positive, South latitudes are negative
// Lat and Long are in decimal degrees
// Written by Chuck Gantz- chuck.gantz@globalstar.com
double k0 = 0.9996;
double LongOrigin;
double eccPrimeSquared;
double N, T, C, A, M;
double LatRad = latitude * M_PI / 180.0;
double LongRad = longitude * M_PI / 180.0;
double LongOriginRad;
int32_t ZoneNumber = static_cast<int32_t>((longitude + 180.0) / 6.0) + 1;
if (latitude >= 56.0 && latitude < 64.0 &&
longitude >= 3.0 && longitude < 12.0)
{
ZoneNumber = 32;
}
// Special zones for Svalbard
if (latitude >= 72.0 && latitude < 84.0)
{
if ( longitude >= 0.0 && longitude < 9.0) ZoneNumber = 31;
else if (longitude >= 9.0 && longitude < 21.0) ZoneNumber = 33;
else if (longitude >= 21.0 && longitude < 33.0) ZoneNumber = 35;
else if (longitude >= 33.0 && longitude < 42.0) ZoneNumber = 37;
}
LongOrigin = static_cast<double>((ZoneNumber - 1) * 6 - 180 + 3); //+3 puts origin in middle of zone
LongOriginRad = LongOrigin * M_PI / 180.0;
// compute the UTM Zone from the latitude and longitude
std::ostringstream oss;
oss << ZoneNumber << UTMLetterDesignator(latitude);
utmZone = oss.str();
eccPrimeSquared = WGS84_ECCSQ / (1.0 - WGS84_ECCSQ);
N = WGS84_A / sqrt(1.0f - WGS84_ECCSQ * sin(LatRad) * sin(LatRad));
T = tan(LatRad) * tan(LatRad);
C = eccPrimeSquared * cos(LatRad) * cos(LatRad);
A = cos(LatRad) * (LongRad - LongOriginRad);
M = WGS84_A * ((1.0 - WGS84_ECCSQ / 4.0
- 3.0 * WGS84_ECCSQ * WGS84_ECCSQ / 64.0
- 5.0 * WGS84_ECCSQ * WGS84_ECCSQ * WGS84_ECCSQ / 256.0)
* LatRad
- (3.0 * WGS84_ECCSQ / 8.0
+ 3.0 * WGS84_ECCSQ * WGS84_ECCSQ / 32.0
+ 45.0 * WGS84_ECCSQ * WGS84_ECCSQ * WGS84_ECCSQ / 1024.0)
* sin(2.0 * LatRad)
+ (15.0 * WGS84_ECCSQ * WGS84_ECCSQ / 256.0
+ 45.0 * WGS84_ECCSQ * WGS84_ECCSQ * WGS84_ECCSQ / 1024.0)
* sin(4.0 * LatRad)
- (35.0 * WGS84_ECCSQ * WGS84_ECCSQ * WGS84_ECCSQ / 3072.0)
* sin(6.0 * LatRad));
utmEasting = k0 * N * (A + (1.0 - T + C) * A * A * A / 6.0
+ (5.0 - 18.0 * T + T * T + 72.0 * C
- 58.0 * eccPrimeSquared)
* A * A * A * A * A / 120.0)
+ 500000.0;
utmNorthing = k0 * (M + N * tan(LatRad) *
(A * A / 2.0 +
(5.0 - T + 9.0 * C + 4.0 * C * C) * A * A * A * A / 24.0
+ (61.0 - 58.0 * T + T * T + 600.0 * C
- 330.0 * eccPrimeSquared)
* A * A * A * A * A * A / 720.0));
if (latitude < 0.0)
{
utmNorthing += 10000000.0; //10000000 meter offset for southern hemisphere
}
}
void
Imagery::UTMtoLL(const double utmNorthing, const double utmEasting,
const std::string& utmZone, double& latitude, double& longitude)
{
// converts UTM coords to lat/long. Equations from USGS Bulletin 1532
// East Longitudes are positive, West longitudes are negative.
// North latitudes are positive, South latitudes are negative
// Lat and Long are in decimal degrees.
// Written by Chuck Gantz- chuck.gantz@globalstar.com
double k0 = 0.9996;
double eccPrimeSquared;
double e1 = (1.0 - sqrt(1.0 - WGS84_ECCSQ)) / (1.0 + sqrt(1.0 - WGS84_ECCSQ));
double N1, T1, C1, R1, D, M;
double LongOrigin;
double mu, phi1, phi1Rad;
double x, y;
int32_t ZoneNumber;
char ZoneLetter;
bool NorthernHemisphere;
x = utmEasting - 500000.0; //remove 500,000 meter offset for longitude
y = utmNorthing;
std::istringstream iss(utmZone);
iss >> ZoneNumber >> ZoneLetter;
if ((ZoneLetter - 'N') >= 0)
{
NorthernHemisphere = true;//point is in northern hemisphere
}
else
{
NorthernHemisphere = false;//point is in southern hemisphere
y -= 10000000.0;//remove 10,000,000 meter offset used for southern hemisphere
}
LongOrigin = (ZoneNumber - 1.0) * 6.0 - 180.0 + 3.0; //+3 puts origin in middle of zone
eccPrimeSquared = WGS84_ECCSQ / (1.0 - WGS84_ECCSQ);
M = y / k0;
mu = M / (WGS84_A * (1.0 - WGS84_ECCSQ / 4.0
- 3.0 * WGS84_ECCSQ * WGS84_ECCSQ / 64.0
- 5.0 * WGS84_ECCSQ * WGS84_ECCSQ * WGS84_ECCSQ / 256.0));
phi1Rad = mu + (3.0 * e1 / 2.0 - 27.0 * e1 * e1 * e1 / 32.0) * sin(2.0 * mu)
+ (21.0 * e1 * e1 / 16.0 - 55.0 * e1 * e1 * e1 * e1 / 32.0)
* sin(4.0 * mu)
+ (151.0 * e1 * e1 * e1 / 96.0) * sin(6.0 * mu);
phi1 = phi1Rad / M_PI * 180.0;
N1 = WGS84_A / sqrt(1.0 - WGS84_ECCSQ * sin(phi1Rad) * sin(phi1Rad));
T1 = tan(phi1Rad) * tan(phi1Rad);
C1 = eccPrimeSquared * cos(phi1Rad) * cos(phi1Rad);
R1 = WGS84_A * (1.0 - WGS84_ECCSQ) /
pow(1.0 - WGS84_ECCSQ * sin(phi1Rad) * sin(phi1Rad), 1.5);
D = x / (N1 * k0);
latitude = phi1Rad - (N1 * tan(phi1Rad) / R1)
* (D * D / 2.0 - (5.0 + 3.0 * T1 + 10.0 * C1 - 4.0 * C1 * C1
- 9.0 * eccPrimeSquared) * D * D * D * D / 24.0
+ (61.0 + 90.0 * T1 + 298.0 * C1 + 45.0 * T1 * T1
- 252.0 * eccPrimeSquared - 3.0 * C1 * C1)
* D * D * D * D * D * D / 720.0);
latitude *= 180.0 / M_PI;
longitude = (D - (1.0 + 2.0 * T1 + C1) * D * D * D / 6.0
+ (5.0 - 2.0 * C1 + 28.0 * T1 - 3.0 * C1 * C1
+ 8.0 * eccPrimeSquared + 24.0 * T1 * T1)
* D * D * D * D * D / 120.0) / cos(phi1Rad);
longitude = LongOrigin + longitude / M_PI * 180.0;
}

66
src/ui/map3D/Imagery.h
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#ifndef IMAGERY_H
#define IMAGERY_H
#include <inttypes.h>
#include <string>
#include "Texture.h"
class Imagery
{
public:
Imagery();
enum ImageryType
{
MAP = 0,
SATELLITE = 1
};
void setImageryType(ImageryType type);
void setOffset(double xOffset, double yOffset);
void setUrl(std::string url);
void prefetch2D(double windowWidth, double windowHeight,
double zoom, double xOrigin, double yOrigin,
double viewXOffset, double viewYOffset,
const std::string& utmZone);
void draw2D(double windowWidth, double windowHeight,
double zoom, double xOrigin, double yOrigin,
double viewXOffset, double viewYOffset,
const std::string& utmZone);
void prefetch3D(double radius, double imageResolution,
double xOrigin, double yOrigin,
double viewXOffset, double viewYOffset,
const std::string& utmZone);
void draw3D(double radius, double imageResolution,
double xOrigin, double yOrigin,
double viewXOffset, double viewYOffset,
const std::string& utmZone);
bool update(void);
private:
void drawTexture3D(const TexturePtr& t,
float x1, float y1, float x2, float y2,
bool smooth);
void UTMtoTile(double northing, double easting, const std::string& utmZone,
double imageResolution, int32_t& tileX, int32_t& tileY,
int32_t& zoomLevel);
char UTMLetterDesignator(double latitude);
void LLtoUTM(const double latitude, const double longitude,
double& utmNorthing, double& utmEasting,
std::string& utmZone);
void UTMtoLL(const double utmNorthing, const double utmEasting,
const std::string& utmZone,
double& latitude, double& longitude);
ImageryType currentImageryType;
};
#endif // IMAGERY_H

54
src/ui/map3D/Texture.cc
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#include "Texture.h"
Texture::Texture()
{
}
Texture::State
Texture::getState(void) const
{
return state;
}
GLuint
Texture::getTextureId(void) const
{
return textureId;
}
int32_t
Texture::getTextureWidth(void) const
{
return textureWidth;
}
int32_t
Texture::getTextureHeight(void) const
{
return textureHeight;
}
int32_t
Texture::getImageWidth(void) const
{
return imageWidth;
}
int32_t
Texture::getImageHeight(void) const
{
return imageHeight;
}
float
Texture::getMaxU(void) const
{
return maxU;
}
float
Texture::getMaxV(void) const
{
return maxV;
}

45
src/ui/map3D/Texture.h
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#ifndef TEXTURE_H
#define TEXTURE_H
#include <GL/gl.h>
#include <QSharedPointer>
class Texture
{
public:
Texture();
enum State
{
UNINITIALIZED = 0,
REQUESTED = 1,
READY = 2
};
State getState(void) const;
GLuint getTextureId(void) const;
int32_t getTextureWidth(void) const;
int32_t getTextureHeight(void) const;
int32_t getImageWidth(void) const;
int32_t getImageHeight(void) const;
float getMaxU(void) const;
float getMaxV(void) const;
private:
State state;
GLuint textureId;
int32_t textureWidth;
int32_t textureHeight;
int32_t imageWidth;
int32_t imageHeight;
float maxU;
float maxV;
};
typedef struct QSharedPointer<Texture> TexturePtr;
#endif // TEXTURE_H
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