bobbycar/logdata_visualization/Timeline.pde

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public class Timeline
{
PVector posOrigin;
PVector size;
int textsize=12;
color cborder = color(200,200,200);
color ctimeslider = color(255,255,255);
private float time_start; //in seconds
private float time_end;
float[] preview_cmd;
float[] preview_throttle;
float[] preview_brake;
float[] preview_currentAll;
public Timeline(int px, int py, int pw, int ph) {
this.posOrigin= new PVector(px,py); //lower left corner
this.size = new PVector(pw,ph); //to the right and up
preview_cmd=new float[(int)this.size.x];
preview_throttle=new float[(int)this.size.x];
preview_brake=new float[(int)this.size.x];
preview_currentAll=new float[(int)this.size.x];
}
public void generatePreview(Table logdata) {
int cID=0; //current ID for generating preview in datalog
for (int x=0;x<this.size.x;x++) //for every width pixel of timeline
{
float t1=xPosToTimeSeconds(x); //time start for this pixel
float t2=xPosToTimeSeconds(x+1); //time end for this pixel
while ((cID+1 < logdata.getRowCount()) && ( t1 > (logdata.getRow(cID+1).getFloat("time")))) { //while starttime not reached
cID++; //next
}
int preview_mean_counter=0;
float preview_mean_cmd=0;
float preview_mean_brake=0;
float preview_mean_throttle=0;
float preview_mean_currentAll=0;
while ((cID+1 < logdata.getRowCount()) && ( t2 > (logdata.getRow(cID+1).getFloat("time")))) { //while endtime not reached
TableRow row = logdata.getRow(cID);
nextTimeData=(long)(logdata.getRow(cID+1).getFloat("time")*1000); //get time and convert from seconds to ms
lastTimeMillis=nextTimeMillis;
preview_mean_cmd += (row.getInt("cmd_FrontL")+row.getInt("cmd_FrontR")+row.getInt("cmd_RearL")+row.getInt("cmd_RearR"))/4.0;
preview_mean_brake += row.getInt("brake");
preview_mean_throttle += row.getInt("throttle");
preview_mean_currentAll += row.getFloat("currentAll");
/*
current_FrontL=row.getFloat("current_FrontL");
current_FrontR=row.getFloat("current_FrontR");
current_RearL=row.getFloat("current_RearL");
current_RearR=row.getFloat("current_RearR");
speed_FrontL=row.getInt("speed_FrontL");
speed_FrontR=row.getInt("speed_FrontR");
speed_RearL=row.getInt("speed_RearL");
speed_RearR=row.getInt("speed_RearR");
temp_Front=row.getFloat("temp_Front");
temp_Rear=row.getFloat("temp_Rear");
vbat_Front=row.getFloat("vbat_Front");
vbat_Rear=row.getFloat("vbat_Rear");
currentAll=row.getFloat("currentAll");
throttle=row.getInt("throttle");
brake=row.getInt("brake");*/
preview_mean_counter++;
cID++; //next
}
preview_mean_cmd/=preview_mean_counter;
preview_mean_brake/=preview_mean_counter;
preview_mean_throttle/=preview_mean_counter;
preview_mean_currentAll/=preview_mean_counter;
preview_cmd[x]=preview_mean_cmd;
preview_brake[x]=preview_mean_brake;
preview_throttle[x]=preview_mean_throttle;
preview_currentAll[x]=preview_mean_currentAll;
}//next pixel
}
public void setTimes(float _start,float _end) {
this.time_start=_start;
this.time_end=_end;
}
public void drawTL(float _time) {
//Preview visualization
for (int x=0;x<this.size.x;x++) //for every width pixel of timeline
{
if (!Float.isNaN(preview_cmd[x])) {
float preview_cmd_scaled=constrain(map(preview_cmd[x],0,1000,0.0,1.0), 0.0,1.0);
preview_cmd_scaled=sqrt(sqrt(preview_cmd_scaled))+0.1;//more contrast
float preview_currentAll_scaled=constrain(map(preview_currentAll[x],0,10,0.0,1.0), 0.0,1.0);
preview_currentAll_scaled=sqrt(sqrt(preview_currentAll_scaled));//more contrast
colorMode(HSB, 360, 100, 100);
stroke(color(200-preview_currentAll_scaled*200,100,preview_cmd_scaled*100));
line(this.posOrigin.x+x,this.posOrigin.y,this.posOrigin.x+x,this.posOrigin.y+this.size.y); //color gradient background
float preview_throttle_scaled=constrain(map(preview_throttle[x],0,1000,0.0,1.0), 0.0,1.0);
colorMode(HSB, 360, 100, 100);
stroke(color(240,100,100));
line(this.posOrigin.x+x,this.posOrigin.y+this.size.y,this.posOrigin.x+x,this.posOrigin.y+this.size.y*(1-preview_throttle_scaled/2)); //line bottom up
float preview_brake_scaled=constrain(map(preview_brake[x],0,1000,0.0,1.0), 0.0,1.0);
colorMode(HSB, 360, 100, 100);
stroke(color(0,100,100));
line(this.posOrigin.x+x,this.posOrigin.y,this.posOrigin.x+x,this.posOrigin.y+this.size.y*preview_brake_scaled/2); //line top down
}
}
//Boarder
rectMode(CORNERS);
noFill();
stroke(this.cborder);
rect(this.posOrigin.x,this.posOrigin.y,this.posOrigin.x+this.size.x,this.posOrigin.y+this.size.y); //border
//current time
int timeslider_xpos = (int)( this.posOrigin.x+timeSecondsToXPos(_time) );
stroke(this.ctimeslider);
line(timeslider_xpos,this.posOrigin.y-3,timeslider_xpos,this.posOrigin.y+this.size.y+3);
textSize(this.textsize);
textAlign(CENTER);
text(int(this.time_start+0.5)+"s", this.posOrigin.x, this.posOrigin.y-1); //starttime
text(int(this.time_end+0.5)+"s", this.posOrigin.x+this.size.x, this.posOrigin.y-1); //endtime
}
public float checkMouse(int mx, int my)
{
if (mx>=this.posOrigin.x && mx <=this.posOrigin.x+this.size.x && my>=this.posOrigin.y && my<=this.posOrigin.y+this.size.y) { //mouse whithin timeline boarder
float mousetime=xPosToTimeSeconds((int)(mx-this.posOrigin.x));
//float mousetimesliderpercent=(mx-this.posOrigin.x)/this.size.x;
//float mousetime=mousetimesliderpercent*(this.time_end-this.time_start)+this.time_start;
return millis()/1000.0-mousetime;
}
return 0;
}
private int timeSecondsToXPos(float _time) {
float timesliderpercent = (_time-this.time_start)/(this.time_end-this.time_start); //0<= x <=1
return (int)(timesliderpercent*this.size.x);
}
private float xPosToTimeSeconds(int _x) {
float mousetimesliderpercent=_x/this.size.x;
return mousetimesliderpercent*(this.time_end-this.time_start)+this.time_start;
}
}