Tag：transparency
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How does HTML5 draw a rectangle with color and transparency for the color on the shape graph
1、 Custom brush style If you want to color the shape map, you need to use the following two important properties. FillStyle: sets the default color for all fill operations.Strokestyle: sets the default color for all stroke operations. 2、 Draws a rectangle with color and transparency Copy code The code is as follows: <!DOCTYPE html> […]
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Flutter optimization record (continuous improvement ~)
This article records the app optimization method, which can check some performance and rendering problems with tools Debug performance issues 1. Track start time flutter run –trace-startup –profile The trace output is saved as start_ up_ info. JSON, the output lists the time from application startup to these trace events (captured in microseconds): When entering […]
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[ugui source code analysis] detailed interpretation of rectmask2d of unity mask
Mask, as the name suggests, is a control that can mask other elements. It is often used to modify the appearance of other elements or limit the shape of elements. For example, Scrollview or round head effect can be used to mask. This series of articles hope to explore the implementation principle of masks by […]
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CSS snowflake animation
design sketch: Project address:https://codepen.io/jianxiujiu… The structure of HTML is as follows. Create 10 snowflake elements. In fact, three or four elements are OK. The more elements there are, the more snowflakes there are, and the speed of snowflakes is different, which will appear more layered. <body> <div class=”snow”></div> <div class=”snow”></div> <div class=”snow”></div> <div class=”snow”></div> <div […]
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Is scrum master the project coordinator| Scrum misunderstanding
The role of Scrum master is a new role, which is often misunderstood by the teams and organizations implementing scrum. When I worked with the organization, I found that the role of Scrum masters was not very valued because A common response is that the scrum master is a “mobile person”. They may be good […]
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How to draw a perfect mouse track
motivation At a company meeting, I make complaints about the effect of a mouse track in a product. You can see that its implementation is tomousemoveThe coordinates when the event is triggered are connected by rectangles with different lengths and widths, so there is an obvious “fracture” at the connection, the whole track is not […]
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Transparency and the application of RGBA
theory opacity Opacity: X, in CSS3, opacity is set. Its value is in the range of [0,1]. When the value is 0, it is fully transparent, while 1 is opaque. Opacity is applicable to the whole element (including its content). background Background: RGBA (R, G, B, a), R: Red value, G: green value, B: blue […]
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Flitter implements listview with deleted animation
In the personal development app, you need to develop a listview with deletion function The effect is as follows Requirements animation analysis The list can be scrolled with listview, There are two animations. The first one is transparency change, and the second one is size change Sequential execution Implementation process Create […]
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Method of creating thermal map on map
Thermodynamic diagram is a diagram displayed in a geographical area in a special highlighted form. Through the degree of color change, we can intuitively reflect the hot spot distribution, regional aggregation and other data information. The thermal map in the map is the combination of the map and the thermal map to realize the display […]
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How to specify color and transparency in HTML5 canvas drawing
Specify the color Black is the default color of canvas painting. If you want to change a color, you have to specify the color before the actual painting. JavaScript CodeCopy content to clipboard ctx.strokeStyle = color Specify the color of the drawn line: JavaScript CodeCopy content to clipboard ctx.fillStyle = color Specifies the color of the fill:Let’s […]
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Canvas animation – circular diffusion, motion trajectory
introduce I’ve seen this circular diffusion effect in ecarts, which is similar to CSS3. I just want to use it in the project, but I don’t want to introduce the entire ecart.js file. What’s more, I want to understand its principle, so I do it myself. In this article, we will analyze the two methods […]
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Nodejs operation and maintenance scheme under 10 million level PV
How to ensure the lowest SLA, problem tracking efficiency and closed-loop construction in the node scheme with large traffic? How to ensure the transparency of request traffic and business operation? Here is how to do Baidu disk. difficulty Node operation and maintenance under 10 million level PV Availability guarantee, minimum guaranteeSLA 99.98% Problem tracking and […]