coordinate-systems

stereoParameters takes two extrinsic parameters: RotationOfCamera2 and TranslationOfCamera2 . The problem is that the documentation is a not very detailed about what RotationOfCamera2 really means, it only says: Rotation of camera 2 relative to camera 1, specified as a 3-by-3 matrix. What is the coordinate system in this case ? A rotation matrix can be specified in any coordinate system. What does it exactly mean "the coordinate system of Camera 1" ? What are its x,y,z axes ? In other words, if I calculate the Essential Matrix, how can I get the corresponding RotationOfCamera2 and

There are different co-ordinate system for JavaScript, such as e.clientX, e.screenX. I understand those two well, but there are some like e.layerX and e.offsetX. These two are not very clear to me. Can someone explain those two co-ordinates for me? offsetX / offsetY are a neat extension by Microsoft to mouse event objects, and mean the position of the mouse pointer relatively to the target element. Sadly, they're not implemented by Firefox, and there's discordance among the other browsers about what should be the origin point: IE thinks it's the content box, while Chrome, Opera and Safari the

I have the following situation in my multi-monitor setup: In this example I want to position a window exactly at the coordinates depicted with the yellow arrow. All I do have however, are the coordinates of an NSView that is a subview of the contentView of an NSWindow that spans the entire (bigger,upper) secondary monitor. Here's how the global coordinate space is defined: {0,0} is the coordinate of the upper left corner of my laptop screen. (green) {-296, -1080} is the coordinate of the upper left corner of my second screen (black) {0, 800} is the coordinate of the lower left corner (no arrow

I'm trying to put a point at the top of Mount Everest in Cesium . My most likely candidate as of last night was the code I borrowed to do geodetic to ecef conversion (from PySatel.coord). Upon review this morning, it appears to be correct: a = 6378.137 b = 6356.7523142 esq = 6.69437999014 * 0.001 e1sq = 6.73949674228 * 0.001 f = 1 / 298.257223563 def geodetic2ecef(lat, lon, alt): """Convert geodetic coordinates to ECEF. Units are degrees and kilometers. """ lat, lon = radians(lat), radians(lon) xi = sqrt(1 - esq * sin(lat)) x = (a / xi + alt) * cos(lat) * cos(lon) y = (a / xi + alt) * cos(lat)

I am given the locations of three points: p1 = [1.0, 1.0, 1.0] p2 = [1.0, 2.0, 1.0] p3 = [1.0, 1.0, 2.0] and their transformed counterparts: p1_prime = [2.414213562373094, 5.732050807568877, 0.7320508075688767] p2_prime = [2.7677669529663684, 6.665063509461097, 0.6650635094610956] p3_prime = [2.7677669529663675, 5.665063509461096, 1.6650635094610962] The affine transformation matrix is of the form trans_mat = np.array([[…, …, …, …], […, …, …, …], […, …, …, …], […, …, …, …]]) such that with import numpy as np def transform_pt(point, trans_mat): a = np.array([point[0], point[1], point[2], 1]) ap

I am using python and I have defined the latitudes and longitudes (in degrees) of a polygon on the map. My goal is to check if a generic point P of coordinates x,y falls within such polygon. I would like therefore to have a function that allows me to check such condition and return True or False if the point is inside or outside the polygon. In this example the point is outside so the result would be False Question : Is there a library/package that allows to reach my goal? if yes which one do you recommend? would you be able to give a small example on how to use it? Here is the code I have