controlP5.slider 绑定到 controlP5.knob 只想向右一个方向工作

Question

我使用 controlP5 模块获得了以下处理代码：

import controlP5.*;
ControlP5 cp5;

void setup() {
  size(180,240);
  smooth();
  noStroke();
  
  cp5 = new ControlP5(this);
  
   cp5.addSlider("CCV_Control")
               .setPosition(40,40)
               .setNumberOfTickMarks(11)
               .setSliderMode(Slider.FLEXIBLE)
               .showTickMarks(false)
               .snapToTickMarks(true)
               .setSize(100,20)
               .setRange(0,100)
               .setValue(20)
               .setLabel("CCV Percent Open");
  cp5.getController("CCV_Control").getCaptionLabel().align(ControlP5.CENTER, ControlP5.BOTTOM_OUTSIDE).setPaddingY(2);
   cp5.addKnob("Water_Flow")
               .setRange(0,70)
               .setValue(20)
               .setPosition(40,100)
               .setRadius(50)
               .setNumberOfTickMarks(28)
               .snapToTickMarks(true)
               .setLabel("Facility Water");
}

void draw() {
  fill(140);
  rect(20,20,140,200);
}

void Water_Flow(int theValue) {
  float ccvPercentage = 0;
  if (theValue <= 2) {
    cp5.getController("Water_Flow").setColorBackground(color(200, 0, 0));
    cp5.getController("CCV_Control").setValue(0);
  } else {
    cp5.getController("Water_Flow").setColorBackground(color(0, 31, 63)); 
    ccvPercentage = (theValue*110)/70;
    cp5.getController("CCV_Control").setValue(ccvPercentage);
  }
}

void CCV_Control(int theValue) {
  float facilityWaterFlow = 0;
  if (theValue <= 2) {
     //cp5.getController("Water_Flow").setValue(0);
 } else {
    facilityWaterFlow = (theValue*70)/100;
    //cp5.getController("Water_Flow").setValue(facilityWaterFlow);
  }
  println("Water Flow: "+facilityWaterFlow+ " is CCV percent: "+theValue);
}

它工作正常，但我需要这两个控件在两个方向上相互绑定。但是，当我取消注释“getController（“Water_Flow”）”行时，日志中充满了错误。有没有更简单的方法将它们绑在一起？

Answer 1

这是根据 apodidae 的响应更新的代码：

void Water_Flow(int theValue) {
  float ccvPercentage = 0;
  if (theValue <= 2) {
    cp5.getController("Water_Flow").setColorBackground(color(200, 0, 0));
  } else {
    cp5.getController("Water_Flow").setColorBackground(color(0, 31, 63)); 
    ccvPercentage = (theValue*110)/70;
  }
  // temporarily turn off broadcasting for controller "CCV_Control"
  boolean broadcast = cp5.getController("Water_Flow").isBroadcast();
  cp5.getController("CCV_Control").setBroadcast(false);
  cp5.getController("CCV_Control").setValue(ccvPercentage);
  // change broadcast back to initial value
  cp5.getController("CCV_Control").setBroadcast(broadcast);
}

void CCV_Control(int theValue) {
  float facilityWaterFlow = 0;
  color knobBackground = color(0, 31, 63);
  if (theValue <= 2) {
    knobBackground = color(200, 0, 0);
 } else {
    facilityWaterFlow = (theValue*70)/100;
  }
  // temporarily turn off broadcasting for controller "Water_Flow"
  boolean broadcast = cp5.getController("Water_Flow").isBroadcast();
  cp5.getController("Water_Flow").setBroadcast(false);
  cp5.getController("Water_Flow").setValue(facilityWaterFlow);
  cp5.getController("Water_Flow").setColorBackground(knobBackground);
  // change broadcast back to initial value
  cp5.getController("Water_Flow").setBroadcast(broadcast);

  println("Water Flow: "+facilityWaterFlow+ " is CCV percent: "+theValue);
}