Javascript ReactJS中的基石工具-不在第一个加载位上工作之后工作
我正在尝试加载最新的ReactJS,但无法使其工作。我可以加载cornerstoneJS,然后显示图像,但不会激活。我见过使用旧版本的cornerstonejs react的例子,但一旦更新,它们也会停止工作 这是我的密码: index.jsJavascript ReactJS中的基石工具-不在第一个加载位上工作之后工作,javascript,reactjs,medical,cornerstonejs,Javascript,Reactjs,Medical,Cornerstonejs,我正在尝试加载最新的ReactJS,但无法使其工作。我可以加载cornerstoneJS,然后显示图像,但不会激活。我见过使用旧版本的cornerstonejs react的例子,但一旦更新,它们也会停止工作 这是我的密码: index.js import React from "react"; import { render } from "react-dom"; import CornerstoneElement from "./cornerstoneElement"; const App
import React from "react";
import { render } from "react-dom";
import CornerstoneElement from "./cornerstoneElement";
const App = () => (
<div>
<h2>Cornerstone React Component Example</h2>
<CornerstoneElement imageId="https://www.fnordware.com/superpng/pnggrad16rgb.png" />
</div>
);
render(<App />, document.getElementById("root"));
import React from "react";
import * as cornerstone from "cornerstone-core";
import * as cornerstoneMath from "cornerstone-math";
import * as cornerstoneTools from "cornerstone-tools";
import Hammer from "hammerjs";
import * as cornerstoneWebImageLoader from "cornerstone-web-image-loader";
import { withStyles } from "@material-ui/core/styles";
import PropTypes from "prop-types";
const defaultTools = {
Pan: 2,
ZoomMouseWheel: 0,
Wwwc: 1
};
cornerstoneTools.external.cornerstone = cornerstone;
cornerstoneTools.external.cornerstoneMath = cornerstoneMath;
cornerstoneTools.external.Hammer = Hammer;
cornerstoneWebImageLoader.external.cornerstone = cornerstone;
const styles = theme => ({
root: {
width: "100%",
height: "100%",
color: "black",
position: "relative"
},
bottomLeftStyle: {
bottom: "0.5rem",
left: "0.5rem",
position: "absolute",
color: "white"
},
bottomRightStyle: {
bottom: "0.5rem",
right: "0.5rem",
position: "absolute",
color: "white"
}
});
class CornerstoneElement extends React.Component {
constructor(props) {
super(props);
this.state = {
viewport: cornerstone.getDefaultViewport(null, undefined)
};
this.toolBox = {};
this.onImageRendered = this.onImageRendered.bind(this);
this.onNewImage = this.onNewImage.bind(this);
this.onWindowResize = this.onWindowResize.bind(this);
}
render() {
const { classes } = this.props;
return (
<div
className={[classes.root, "viewportElement"].join(" ")}
ref={input => {
this.element = input;
}}
>
<canvas className="cornerstone-canvas" />
<div className={classes.bottomLeftStyle}>
Zoom: {this.state.viewport.scale}
</div>
<div className={classes.bottomRightStyle}>
WW/WC: {this.state.viewport.voi.windowWidth} /{" "}
{this.state.viewport.voi.windowCenter}
</div>
</div>
);
}
onWindowResize() {
cornerstone.resize(this.element);
}
onImageRendered() {
const viewport = cornerstone.getViewport(this.element);
this.setState({
viewport
});
}
onNewImage() {
const enabledElement = cornerstone.getEnabledElement(this.element);
this.setState({
imageId: enabledElement.image.imageId
});
}
componentDidMount() {
const element = this.element;
this.loadDefaultCanvas(element);
this.element.addEventListener(
"cornerstoneimagerendered",
this.onImageRendered
);
this.element.addEventListener("cornerstonenewimage", this.onNewImage);
window.addEventListener("resize", this.onWindowResize);
}
componentWillUnmount() {
const element = this.element;
element.removeEventListener(
"cornerstoneimagerendered",
this.onImageRendered
);
element.removeEventListener("cornerstonenewimage", this.onNewImage);
window.removeEventListener("resize", this.onWindowResize);
cornerstone.disable(element);
}
loadDefaultCanvas(element) {
//enable element
cornerstone.enable(element);
this.loadImageToGivenPath().then(() => {
cornerstoneTools.init();
console.log(cornerstoneTools);
this.loadDefaultTools(element);
});
}
async loadImageToGivenPath() {
let image = await cornerstone.loadAndCacheImage(this.props.imageId);
return cornerstone.displayImage(this.element, image);
}
loadDefaultTools(element) {
for (const defaultTool of Object.keys(defaultTools)) {
this.loadCsTool(
String(defaultTool),
defaultTools[defaultTool],
true,
element
);
}
}
loadCsTool(toolName, toolMouseMask = 0, activate = false, element) {
const tool = cornerstoneTools[toolName + "Tool"];
cornerstoneTools.addToolForElement(element, tool);
//keep toolbox status
this.toolBox[toolName + "Tool"] = {
isEnabled: false
};
if (activate) {
this.activateCsTool(toolName, toolMouseMask, element);
}
}
activateCsTool(toolName, toolMouseMask = 0, element) {
cornerstoneTools.setToolActiveForElement(element, toolName, {
mouseButtonMask: toolMouseMask
});
this.toolBox[toolName + "Tool"].isEnabled = true;
}
}
CornerstoneElement.propTypes = {
classes: PropTypes.object.isRequired
};
export default withStyles(styles)(CornerstoneElement);
从“React”导入React;
从“react dom”导入{render};
从“/CornerstoneElement”导入CornerstoneElement;
常量应用=()=>(
一个组件示例
);
render(,在某个点中断代码并立即修复后,它可以正常工作。但是,它不能在页面加载时工作,这是预期的结果
图像链接作为道具传递给Cornerstone元素。任何帮助都将不胜感激
更新:fiddle现在可以处理外部图像,问题仍然存在。控制台中没有错误或警告。自从您提出问题以来,Cornerstonejs核心团队发布了一个在React组件中包装Corneronous和Corneronouse Tools版本4的实用示例:
在React组件和方法声明中,您的代码似乎有很多与此相关的问题。这并不能解决您的问题,但我想指出的是。将所有方法转换为arrow函数并删除所有绑定谢谢,我确实理解此问题,这是我从示例I l复制的代码墨迹斑斑,一本正经,只是不想改变它来理解这个问题。我已经弄明白了,我很快会添加一个答案。再次感谢:)