Course Introduction：To apply a gradient to a Canvas shape, you need to follow the following steps: 1. Use createLinearGradient() or createRadialGradient() to create a gradient and define its coordinate range; 2. Add one or more color nodes through addColorStop() to set the gradient color; 3. Assign the gradient object to fillStyle or strokeStyle attributes; 4. Use fillRect, arc and other drawing methods to create a shape, and the gradient will be automatically filled. Note that the gradient is based on the canvas coordinate system. When moving the shape, the gradient coordinates need to be readjusted to maintain visual consistency. The final effect depends on the precise control of coordinate settings and color transitions.
2025-08-04 comment 0 258
Course Introduction：Use Photoshop's magic wand tool to quickly select areas of similar colors, suitable for background deletion and simple cutouts. The core is to master the setting options and use them in conjunction with other functions. The operation steps are as follows: 1. Press the shortcut key W to select the magic wand tool, click the image area to select the area; 2. Press Shift to add the selection, Alt or Option to subtract the selection; 3. Adjust the "Tolerance" value to control the selection range, the smaller the value, the more accurate it is; 4. Check "Continuous" to select only the connected areas, cancel the entire image to select the entire image; 5. Enable "Sample all layers" to select the color based on the overall effect of multiple layers. Magic wands are suitable for scenes with single colors and obvious contrast, and are not suitable for situations where colors are similar, edges are blurred or require high precision. Practical techniques include scaling canvas, combining "select"
2025-07-21 comment 0 499
Course Introduction：SqlParameter Parameters.Add vs. AddWithValue: Choosing the Best MethodWhen working with SQL commands, you may encounter the need to add...
2025-01-10 comment 0 705
Course Introduction：In Dave The Diver, there are some creatures that are not easy to catch. Or, catch alive that is. The spider crab is one of those very species, making it seem like the only way to bring these crustaceans back up to land is to viciously crack them up w
2025-01-10 comment 0 866
Course Introduction：Conditional Column CountingConsider a table named "Jobs" structured as follows:jobId, jobName, Prioritywhere "Priority" is an integer between 1...
2025-01-10 comment 0 875
Course Elementary 13826
Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.
Course Elementary 82370
Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).
Course Elementary 13184
Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.
Course Elementary 24633
Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.
Course Elementary 27491
Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.
Laravel Modal does not return data
2024-03-29 10:31:31 0 1 610
Can I use the automatic generation module of thinkphp5 in Windows 7 system? How to configure and use
2017-10-10 17:04:14 0 2 1410
2017-10-10 19:25:59 0 4 2966
To use mcrypt_get_key_size() in php study, how to enable mcrypt_
2017-10-10 19:47:34 0 1 1193
Detecting login status and preventing repeated login status in TP5 - My page is wrong
2017-10-10 22:49:15 0 0 1213
