beremiz

Runtime: Added PostStart methot to PLCObject, called after PLC is started, with all libraries and python object already created, and python extensions "Start" methods being called.
svghmi
2021-03-10, Edouard Tisserant
a7941f053a83
Runtime: Added PostStart methot to PLCObject, called after PLC is started, with all libraries and python object already created, and python extensions "Start" methods being called.
This is called before python thread processing py_eval blocks starts. Example purpose: attach additional ressource to web services
// widget_meter.ysl2
template "widget[@type='Meter']", mode="widget_class"{
||
class MeterWidget extends Widget{
frequency = 10;
origin = undefined;
range = undefined;
dispatch(value) {
this.display_val = value;
this.request_animate();
}
animate(){
if(this.value_elt)
this.value_elt.textContent = String(this.display_val);
let [min,max,totallength] = this.range;
let length = Math.max(0,Math.min(totallength,(Number(this.display_val)-min)*totallength/(max-min)));
let tip = this.range_elt.getPointAtLength(length);
this.needle_elt.setAttribute('d', "M "+this.origin.x+","+this.origin.y+" "+tip.x+","+tip.y);
}
init() {
let [min,max] = [[this.min_elt,0],[this.max_elt,100]].map(([elt,def],i)=>elt?
Number(elt.textContent) :
this.args.length >= i+1 ? this.args[i] : def);
this.range = [min, max, this.range_elt.getTotalLength()]
this.origin = this.needle_elt.getPointAtLength(0);
}
}
||
}
template "widget[@type='Meter']", mode="widget_defs" {
param "hmi_element";
labels("needle range");
optional_labels("value min max");
}