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Qt Qml代码实现的仪表盘动画

效果：

部分Qml代码：

import QtQuick 2.0Item {width: 2 * radiusheight: 2 * radiusrequired property double radiusproperty double airspeed: 0property double angle: 0onAirspeedChanged: update();function update(){angle = airspeedif      (angle <   0.0) angle =   0.0else if (angle > 235.0) angle = 235.0if      (angle <  40.0) angle =          0.9 *  angleelse if (angle <  70.0) angle =   36.0 + 1.8 * (angle -  40.0)else if (angle < 130.0) angle =   90.0 + 2.0 * (angle -  70.0)else if (angle < 160.0) angle =  210.0 + 1.8 * (angle - 130.0)else                    angle =  264.0 + 1.2 * (angle - 160.0)}CustomImage {anchors.fill: parentsource: "../Resources/asi/asi_face.svg"}CustomImage {anchors.fill: parentsource: "../Resources/asi/asi_case.svg"}CustomImage {anchors.fill: parentsource: "../Resources/asi/asi_hand.svg"rotation: angle}}

代码下载：

https://download.csdn.net/download/qq_38159549/88251636