Solution that automatically scales to dimensions of an element would be usage of CSS3 linear-gradient connected with calc() as shown below. (There were some issues with Chrome in times of v30+ versions that this answer originally described but looks like they got resolved in the meantime and in v90+ it works as expected). .crossed { … Read more
Read a file line by line and execute commands: 4+ answers This is because there is not only 1 answer… Shell command line expansion xargs dedicated tool while read with some remarks while read -u using dedicated fd, for interactive processing (sample) running shell with inline generated script Regarding the OP request: running chmod on … Read more
use LineCollection: import numpy as np import pylab as pl from matplotlib import collections as mc lines = [[(0, 1), (1, 1)], [(2, 3), (3, 3)], [(1, 2), (1, 3)]] c = np.array([(1, 0, 0, 1), (0, 1, 0, 1), (0, 0, 1, 1)]) lc = mc.LineCollection(lines, colors=c, linewidths=2) fig, ax = pl.subplots() ax.add_collection(lc) ax.autoscale() … Read more
You are getting caught out by the last paragraph in this part of the SVG specification Keyword objectBoundingBox should not be used when the geometry of the applicable element has no width or no height, such as the case of a horizontal or vertical line, even when the line has actual thickness when viewed due … Read more
Instead of using cv2.HoughLines(), an alternative approach is to use template matching. The idea is to search and find the location of a template image in a larger image. To perform this method, the template slides over the input image (similar to 2D convolution) where comparison methods are performed to determine pixel similarity. This is … Read more
\n works for me, like this: <TextView android:text=”First line\nNext line”
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There is no “320×240 glOrtho canvas”. There is only the window’s actual resolution: 960×720. All you are doing is scaling up the coordinates of the primitives you render. So, your code says to render a line from, for example, (20, 20) to (40, 40). And OpenGL (eventually) scales those coordinates by 3 in each dimension: … Read more
You should use “beginPath()“. That is it. function lineDraw() { var canvas=document.getElementById(“myCanvas”); var context=canvas.getContext(“2d”); context.clearRect(0, 0, context.width,context.height); context.beginPath();//ADD THIS LINE!<<<<<<<<<<<<< context.moveTo(0,0); context.lineTo(event.clientX,event.clientY); context.stroke(); }
The point A is always outside of the rectangle and the point B is always at the center of the rectangle Assuming the rectangle is axis-aligned, this makes things pretty simple: The slope of the line is s = (Ay – By)/(Ax – Bx). If -h/2 <= s * w/2 <= h/2 then the line … Read more