coordinate-transformation

I am developing a web application using JQuery Framework and am using Geolocation to determine the locations of our hardware stations to display on Google Maps. In our database the locations of the sites are stored in Southing/Easting format. I need a way to convert Southing/Easting coordinates to Latitude/Longitude that Google Maps can understand. Can anyone please tell me the formula or the best way to approach this problem? I have done searches on Southing/Easting however nothing came up, more like northing/westing etc and even then, not much info.. The programming part I don't really need

I'm trying to rotate 2 objects independently but when I run the code both objects rotate in the same direction enter code here here i save the matrix and rotate a square under the cube def rotate_square(): glColor3f(1,1,1) glMatrixMode(GL_MODELVIEW) glPushMatrix() glRotatef(45,0,1,0) glBegin(GL_LINES) glVertex3fv(v1); glVertex3fv(v2); glVertex3fv(v1); glVertex3fv(v3); glVertex3fv(v3); glVertex3fv(v4); glVertex3fv(v2); glVertex3fv(v4); glEnd() glPopMatrix() main function def main(): pygame.init() screen = pygame.display.set_mode(SCREEN_SIZE, DOUBLEBUF|OPENGL) resize(*SCREEN_SIZE) print

I have a LatLng object and I want to shift it's coordinates 500 meters to the east. I couldn't find a built-in method for that. I've seen https://gis.stackexchange.com/a/2964 but my results are just too inaccurate (about 15%) to use practically. How can I make a precise shift in meters? Note: I am NOT looking for shifting a Google Maps camera, I know how to do that. I've tried: static final double KILOMETERS_PER_DEGREE = 111.111; static LatLng offsetLongitude(LatLng initialCoords, float horizontalOffsetInMeters){ double degreeOffset = 1.0 / KILOMETERS_PER_DEGREE * horizontalOffsetInMeters /

in the above image I have shown two rectangles rectangle 1 whose x can vary from -900 to 13700 and Y can vary from -600 to 6458 rectangle 2 whose coordinate X can vary from 0 to 3000 and y can vary from 0 to 2000 Also: rectangle 2 has its starting point at left top position(0,0) whereas rectangle 1 has starting point( width/2, height/2). What I need to do : to convert a point of rectangle 1 to point of rectangle 2 using scaling or translation. So, what should be scaling factor for x and y coordinates in order to transform the coordinate of rectangle 1 to rectangle 2 ? Matthew Watson If:

I have position (x,y,z) and velocity (Vx,Vy,Vz) vectors in Earth Centered Inertial Coordinates (ECI) for a satellite orbit, and ultimately want to end up with geodetic coordinates (Latitude, Longitude, & Altitude). According to this other Stack Overflow question it seems that I need to convert to Earth Centered Earth Fixed (ECEF) coordinates as an intermediate step (so ECI --> ECEF --> Lat/Lon/Alt). I know ECI and ECEF share the same origin point (the center of mass of Earth) and the same z-axis that points to the North Pole. However, I am not sure what actual equations or adjustments I need

I'm trying to understand the logic behind the OpenCV's cv::undisortPoints()' iterative approximation algorithm. The implementation is available at: https://github.com/Itseez/opencv/blob/master/modules/imgproc/src/undistort.cpp (lines 361-368). The way I see it: using last best guessed pixel position (x, y), try to find better guess by applying inverse of the 'distortion at current best guess', and adjust the pixel position in regard to the initial distorted position (x0, y0) use initial distorted position (x0, y0) as a first 'best guess' But the above doesn't really tell why this can be done..

I'm using a map with a layer (from the example): var lonLat = new OpenLayers.LonLat(40.4088576, -86.8576718) .transform( new OpenLayers.Projection("EPSG:4326"), // transform from WGS 1984 map.getProjectionObject() // to Spherical Mercator Projection ); on moveend i'm get center coordinates: map.getCenter(); map.getZoom(); and zoom level: 4925535.4503328, -9668990.0134335, 12 Using algorithm from documentation public PointF TileToWorldPos(double tile_x, double tile_y, int zoom) { PointF p = new Point(); double n = Math.PI - ((2.0 * Math.PI * tile_y) / Math.Pow(2.0, zoom)); p.X = (float)((tile_x