transform

问题 I have a little problem with my CSS file. I try to make an icon that scale to infinite (works), and when I click on icon, an animation rotate the parent to 90deg and the icon rotate to 45deg (works). But, if I combine the 2 behavior, the rotate of icon break. I want rotate the icon of 45deg, and keep the animation. A demo example: https://codepen.io/KevinPy/pen/ooEbKY?editors=1100 In my demo, the first occurence works with the rotate to 45deg. The second occurence add the animation (via class

问题 I have a little problem with my CSS file. I try to make an icon that scale to infinite (works), and when I click on icon, an animation rotate the parent to 90deg and the icon rotate to 45deg (works). But, if I combine the 2 behavior, the rotate of icon break. I want rotate the icon of 45deg, and keep the animation. A demo example: https://codepen.io/KevinPy/pen/ooEbKY?editors=1100 In my demo, the first occurence works with the rotate to 45deg. The second occurence add the animation (via class

问题 I am trying to find the equivalent point from one triangle to another. Ideally I want to be able to give the 3 points of triangle A and the 3 points of triangle B which will then calculate the transform matrix which I can apply to the point afterwards to find the equivalent point. I have found a few JavaScript libraries/methods for this, but they all use quadrilaterals rather than triangles and I am not sure what to do to apply to a triangle instead. 回答1: Three point pairs can define affine

问题 I am using Material-UI's <LinearProgress variant="determinate" /> component which by default transforms the scaleX() property of a <div> inside another <div> whenever the value changes to visualize the current progress. It does so with an easing effect to make everything look smooth which generally is quite nice, however for the purpose of my application (audio seekbar) I would like to disable this animation entirely whenever the value changes. Is it possible? Demo codesandbox 回答1: I was able

问题 I've got coordinates of 4 points in 2D that form a rectangle and their coordinates after a perspective transformation has been applied. The perspective transformation is calculated in homogeneous coordinates and defined by a 3x3 matrix M . If the matrix is not known, how can I calculate it from the given points? The calculation for one point would be: | M11 M12 M13 | | P1.x | | w*P1'.x | | M21 M22 M23 | * | P1.y | = | w*P1'.y | | M31 M32 M33 | | 1 | | w*1 | To calculate all points

问题 I have a XLD contour that i need to convert from world plane to image plane.. but I can only find affine_trans_contour_xld , that accepts a 2D Mat, and not a 3D mat.. how can I transform the xld Contour from the world plane to the image plane? basically what I need is the inverse of contour_to_world_plane_xld EDIT: I THINK that the solution would be to find the 2D Mat of the XY plane, but couldnt find how to do that either.. 回答1: I solved it this way: *get the points of a 100 mm square on my

来源： https://stackoverflow.com/questions/64326617/how-can-i-repeat-a-transformation-of-some-xml-using-xslt

来源： https://stackoverflow.com/questions/64326617/how-can-i-repeat-a-transformation-of-some-xml-using-xslt

来源： https://stackoverflow.com/questions/64326617/how-can-i-repeat-a-transformation-of-some-xml-using-xslt

来源： https://stackoverflow.com/questions/62452340/transforming-data-frame-in-python