I am working on importing a model into a scene using the THREE.js OBJ loader.   I know that I am able to import the geometry fine, because when I assign a MeshNormalMaterial to it, it shows up great. However, if I use anything that requires UV coor...

I'm trying to convert a lat/lon pair to a pixel coordinate. I have found this mercator projection but I don't understand the code. What is the factor,x_adj, y_adj variable? When I run the code without those constants my lat/lon pair is not...

I was trying to pack circles of different sizes into a rectangular container, not packing in circular container that d3.js bundled with, under d3.layout.pack.  here's the layout I want to achieve:    I've found this paper on this matter, bu...

I have a set of metallic sliding pieces which are constrained to the x and y axis in following way:    I would need to maximize the horizontal distance among all pieces constrained by the same slider and the vertical distance among the sliding piec...

I'm able to draw a simple circle on HTML5 canvas, but I'd like to add some blur around it.  What I found was this website which explains the shadowBlur property which can come in handy here.  However, I cannot manage to make the circle itself...

I'm using the Google Maps API and have added markers. Now I want to add a 10 mile radius around each marker, meaning a circle that behaves appropriately while zooming. I have no idea how to do that and it seems it's not something common.  I f...

Yesterday I was looking to check if a point was inside a polygon and found this great script: https://github.com/tparkin/Google-Maps-Point-in-Polygon  But today at work I was told that our client needs to check if one polygon is inside another polygo...

Basically I'm asking this question for JavaScript: Calculate Bounding box coordinates from a rotated rectangle    In this case:   iX = Width of rotated (blue) HTML element iY = Height of rotated (blue) HTML element bx = Width of Bounding Box (red...

This might be more a geometry related question, but I'm trying to constrain a controller within an area of a circle. I know I have to touch the Math.sin() and Math.cos() methods, but my attemps so far have been fruitless so far.     Here is the j...

I want to select random points on a given sphere. This page explains it quite well:  http://mathworld.wolfram.com/SpherePointPicking.html ("To obtain points such that any small area on the sphere...")  But I'm not entirely sure if I'm...