projection Questions
4
Solved
I calibrated my mono camera using opencv. Now I know the camera intrinsic matrix and distortion coefs [K1, K2, P1 ,P2,K3 ,K4, K5, K6] of my camera. Assuming that camera is place in [x, y, z] with [...
Stouffer asked 28/5, 2015 at 9:35
1
I'm creating a 3D globe with elevation:
I now want to add click detection to get a 3D world xyz position from a 2D screen xy + depth (from a click). I'm using the following code (inspired from Get...
Evolution asked 2/6 at 11:40
20
Solved
Suppose you have the following documents in my collection:
{
"_id":ObjectId("562e7c594c12942f08fe4192"),
"shapes":[
{
"shape":"square",
"color":"blue"
},
{
"shape":"circle",
"color"...
Freitas asked 21/10, 2010 at 7:31
11
Solved
I've searched around for an example that matches my use case but cannot find one. I'm trying to convert screen mouse co-ordinates into 3D world co-ordinates taking into account the camera.
Solutio...
Weksler asked 24/10, 2012 at 18:12
1
Solved
So I recently had a question about using the ranges variant of the std::ranges::find algorithm and the answer used a projection:
if (auto const it{std::ranges::find(iv, 1, &S::a)}; it != iv.end...
Cherie asked 5/10, 2023 at 17:20
2
Q. Why JPA Projection can't convert Mysql bit(1) to Java Boolean?
Spring Jpa Projection occur error Projection type must be an interface! when the Mysql bit(1) type maps to the Java Boolean type.
J...
Shae asked 23/3, 2021 at 12:7
25
In my MongoDB, I have a student collection with 10 records having fields name and roll. One record of this collection is:
{
"_id" : ObjectId("53d9feff55d6b4dd1171dd9e"),
"name" : "Swati",
"rol...
Lampkin asked 31/8, 2014 at 5:4
8
Solved
This is my object:
{
"_id" : ObjectId("53fdcb6796cb9b9aa86f05b9"),
"list" : [ "a", "b" ],
"complist" : [
{ "a" : "...
Dis asked 27/8, 2014 at 13:16
1
Solved
I am working on an animation of a 3D plot using mpl_toolkits.mplot3d (Matplotlib 3.6.3) and need to set the view distance.
It seems that earlier versions of Matplotlib allowed the elevation, azimut...
Tripos asked 17/1, 2023 at 12:50
4
Solved
I'm trying to load a list of KeyValuePairs from an EF / Linq query like this:
return (from o in context.myTable
select new KeyValuePair<int, string>(o.columnA, o.columnB)).ToList();
My p...
Seduction asked 25/6, 2013 at 15:53
0
Is there a way to improve the rendering of this interactive matplotlib/cartopy script ?
Please install first ipympl
https://github.com/matplotlib/ipympl
I haven't found how to change the central lo...
Kearse asked 2/10, 2022 at 13:48
1
Solved
I'm trying to check whether two polygons intersect in R. When plotting, they clearly do not. When checking the intersection, rgeos::gIntersects() currently returns FALSE, while sf::intersects() ret...
Polynuclear asked 31/8, 2022 at 18:45
5
I'm looking for the mathematical transformation to transform points on a 2D plane [0,1]x[0,1] onto the unitsphere.
The most common projection would latitude-longitude mapping by interpreting u and...
Racon asked 10/9, 2010 at 15:26
2
I'm using plotly's Scattermapbox to overlay a map with a shaded image of polygons created by datashader's shade function (based on https://plotly.com/python/datashader/), but the projections do not...
Buhrstone asked 9/12, 2021 at 13:53
2
Solved
I have a LineString defined by two points, so essentially a straight line segment, and I wanted to project a point on to it. I am aware of .project and .interpolate. However when the point is "outs...
Robber asked 2/3, 2018 at 1:43
2
Solved
I've been wondering which kind of projections should I use, so I did a little test, which covered 5 types of projections (based on docs: https://docs.spring.io/spring-data/jpa/docs/current/referenc...
Pantisocracy asked 17/11, 2018 at 0:29
3
Solved
Is there a way to project fields that may or may not exist? Such as having it defined as null or undefined?
For instance, I have a query with:
$project: {
date: 1,
name: "$person.name",...
Arium asked 1/4, 2015 at 18:35
7
Solved
BOUNTY STATUS UPDATE:
I discovered how to map a linear lens, from destination coordinates to source coordinates.
How do you calculate the radial distance from the centre to go from fisheye to ...
Parka asked 19/3, 2010 at 13:50
2
Solved
This code works and returns an iterator to foo{5} from the vector:
struct foo {
int value;
};
auto main() -> int {
auto ints = std::vector<foo>{{3}, {2}, {5}, {6}, {7}, {0}, {4}, {6}};
...
Polyzoic asked 15/12, 2021 at 12:39
2
Solved
I'm using Java EE 7 with Java 8 and Hibernate (5.0.X) on Wildfly 10.1.0-Final, and I need to load a a JPQL query result into DTOs using projections, but I can't find any documentation on how to loa...
Leisha asked 22/9, 2018 at 0:50
1
Solved
Example collections:
employee
{"FNAME" : "John", "LNAME" : "Smith", "SSN" : "123456789", "SALARY" : 30000, "SUPERSSN"...
Langdon asked 17/4, 2021 at 12:43
6
Solved
Given: A 3D mesh defined with a set of vertices and triangles building up the mesh with these points.
Problem: Find the 2d outline of the projected arbitrarily rotated mesh on an arbitrary plane.
...
Patronizing asked 18/6, 2009 at 18:11
2
Solved
I know that in ng2 we have ComponentFactoryResolver that can resolve factories that we can apply to a ViewContainerRef.
But, is there something similar for directives? a way to instantiate them an...
Saccharine asked 18/9, 2016 at 23:21
4
I am having difficulty in implementing projection in Spring Data JPA:
2017-10-19 11:31:33.968 ERROR 4272 --- [nio-8080-exec-6] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet ...
Quinque asked 19/10, 2017 at 8:42
5
Solved
I'm using Spring JPA and I need to have a native query. With that query, I need to get only two fields from the table, so I'm trying to use Projections. It isn't working, this is the error I'm gett...
Footy asked 26/3, 2018 at 20:44
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