javascript - canvas design mouse drawing function draws multiple parallel colored lines in one stroke

1. The mouse drawing function of canvas design can draw multiple parallel colored lines in one stroke. 2. Tried adding drawing oCg.beginPath(); to the mouse event, but the event will be overwritten. 3. Add a duplicate canvas in the same way, but the canvas is covered.

PHP中文网 2017-06-13 09:24:08 0  1  1284

javascript - JS and CSS problem, after moving the mouse to an icon on the map, how to center the displayed content relative to the icon.

As shown in the picture below, the right side is the effect I need, that is, when the mouse is moved over the red location icon on the map, the photos and content displayed are centered relative to the location icon below. The left side is the effect I made. The displacement is too serious. Please h...

给我你的怀抱 2017-06-12 09:32:10 0  1  874

Place interactive markers on images using React

please help. I have an image like the one below that is displayed on the home page (a larger image). Note that the "FORGE" house has a white and blue marker with a black arrow in the middle. The same goes for "rental" homes. Each of these markers will act as an interactive button...

P粉896751037 2023-09-08 21:25:41 0  1  851

javascript - How to switch the sprite image and font color by clicking on the navigation?

As shown in the picture, but there are four pages in the picture. What I want to do now is click on the icon and change the font color on a page. Then the icon is made with a sprite image. Below is a screenshot of the code. It mainly depends on the sprite image.

曾经蜡笔没有小新 2017-05-19 10:43:10 0  2  1697

How can I enlarge the background icon?

For example, in the background image of this chapter, there are many icons in the image. I only want the first icon. How can I make an icon larger? The width and height of this icon are only 30px*30px, for example. I write css like this: background: url (../images/ xxx.png); background-position:0px ...

何惜一博 2018-09-21 16:12:16 0  2  1306

css - layer icon problem

The code for the icon is written like this on the page, but it cannot be displayed. Does layxer need to introduce font or css to use the icon? If so, where can I download it? . .

给我你的怀抱 2017-07-05 10:45:57 0  2  1195

How to change the size of the li front image icon

How to change the size of the li front image icon

雷国恩 2019-03-08 22:39:49 0  0  1097

After my wamp is installed, it displays orange and only two services are running. What should I do?

After my wamp is installed, it displays orange and only two services are running. What should I do?

张晓磊 2018-12-06 12:28:06 0  1  1613

The initial web icon

How do I create a web page icon in the computer's D drive? How can I create a web page icon? It's just a document. How can I create a browser icon?

真情流露的霎那间丶 2019-03-07 15:25:00 0  2  1209

Looking for a javascript map marker plug-in

1. Is there such a JavaScript plug-in that can achieve the following effect? ​​The three objects on the left can be dragged to the map on the right. After dragging to the map and releasing the mouse, a mark will be left on the map (used to Mark the map location), and an editable dialog box will pop ...

怪我咯 2017-05-18 10:49:58 0  1  620

iconfont font icon rotation - Stack Overflow

{Code...} {Code...} The icon is not rotated on the page. You are using the Chrome browser. Can you tell me why? Does it mean that Alibaba’s vector icons do not support rotation {code...} Thank you, there is still no change in the page.

学习ing 2017-06-26 10:52:06 0  4  1428

How to change the background color of the cursor when using vim to view php code?

As shown in the picture, I enabled vim's syntax highlighting and used a custom color theme. When the cursor is on { }, how do I change its background color?

高洛峰 2017-05-16 16:41:28 0  2  702

css - Secondary development adds new font icons. How to add some new icons while retaining the original ones?

Because it is a secondary development, the icon library account of the previous person is not retained, but most of the icons need to be retained. Only a few icons need to be updated, so the previous files cannot be overwritten. . . How can I add some new icons while retaining the original ones?

黄舟 2017-05-27 17:44:15 0  1  952

Change image icon when active tab changes

Currently I have a v-tab which has four tabs with image icons and text. However, when the tab is active, the active tab icon should change to another image. what should I do? <v-tabsv-model="tabs"class="tabs-menu"><v-tabv-for="iteminiitems":key="item.id&qu...

P粉448130258 2023-08-29 18:55:29 0  1  624

javascript - How to remove the small icon in the upper left corner when the image request fails?

How to remove the small icon in the upper left corner when the image request fails?

淡淡烟草味 2017-06-17 09:15:59 0  4  989

Button with centered text and icon

I'm developing a button component with an icon and text. The icon is placed to the left of the button and the text is aligned in the middle of the button. If the text cannot fit into the button, it should not wrap but can be truncated. The key condition for truncating text is that the text should be...

P粉033429162 2023-08-15 11:01:09 0  1  539

Reactjs SVG icons are different sizes despite the same css

This is my first time building a website using reactjs. I've been using ReactJS icons from the React Icon Library. When these icons are repeated in the same part of the website, their sizes will vary. Photos are attached for your reference'. I checked using check. Shows that for the smaller icon it'...

P粉184747536 2024-04-01 13:18:38 0  1  505

javascript - Converting GPS coordinates to Baidu map coordinates is Nan?

I used H5 to obtain the current coordinates, and then called the API of Baidu Maps. I found that there was an error in the display on the mobile phone, about 1000 meters. I checked the information and said that this is normal. I must convert the GPS coordinates into Baidu Maps. I looked at the API a...

ringa_lee 2017-05-18 11:01:57 0  1  700

How to change the color of a picture

Could you please tell me, after I scanned this, the color is distorted, how can I adjust it to the original green color? The original picture has the color of the first one, how can I change the second one to the first one?

2021-12-28 11:15:02 0  0  843

How to load random icons every time React loads

Is there a way in React to randomly load a new icon every time the page is reloaded? I want to have a list of icons and randomly select one every time the page loads. In manifest.json, the icons are loaded as follows: "icons":[{"src":"favicon.ico","sizes":&quo...

P粉237647645 2023-09-09 14:48:46 0  1  756