I am working on a React/TypeScript component that renders the phases of the moon based on a value between 0 and 1. The issue is that the moon phases are not rendering correctly between the First Quarter and Last Quarter…
CGRect has a very convenient built-in constant: CGRect.null let aRect = ... //get rect from somewhere CGRect.null.union(aRect) //is aRect CGRect.null.intersection(aRect) //is CGRect.null CGPath doesn't have anything like this, meaning you can't do something like: let bunchOfPaths = [...] //array of…
A drawing robot is positioned at point(0,0) of a coordinate plane, and the string moves describes the path the robot will take. Each of the strings's characters describes a single move made by the robot. Moreover, the robot will make…
CASE A SELECT ST_DistanceSphere( ST_GeomFromText('POINT(127.058923 37.242621)', 4326), "geometryType")as distance FROM "MyTable" WHERE ST_DistanceSphere( ST_GeomFromText('POINT(127.058923 37.242621)', 4326), "geometryType") < 500; CASE B SELECT ST_DistanceSphere( ST_GeomFromText('POINT(${longitude} ${latitude})', 4326), "geometryType")as distance FROM "MyTable" WHERE ST_DistanceSphere( ST_GeomFromText('POINT(${longitude} ${latitude})', 4326), "geometryType") < 500; When performing…
Earlier, I was trying to find out how to rotate a line around a pivot using p5.js, and I played with the code a little bit to make the line point towards the mouse using the atan2 function. It worked…
In above Image, x, y is the centre point of circle and a1,b1 is point at its radius x1, y1 is a pointer position on canvas that form a straight line to x,y & a1,b1 now if I move the…
So, I have a point in an unknown location, which I need to programmaticaly find. The only way we can try to find it's location is is by calling a special isThePointWithin500MetersOfLocation(x, y) function, which will return true if the…
I am trying to center text in a SVG circle. Looked att previous solutions, however can't make it work. How can I get the following example center the 'X' i the circle not modifying the x/y coordinates or font size?…
I'm trying to create a program that converts Polar values to Cartesian and back again. I need to be able to switch between the two types without any change in the data. I've created class types for Polar and Cartesian…
I'm trying to plot a specified number of steps between 2 points on a polar circle graph. The angle (radius) is represented by HUE, from 0 to 360. The theta is represented by CHROMA (strength). I specify how many steps…