adding a few filters (no doing anything yet)

pdb-js/src/app/visualization-page/visualization-page.component.ts

@@ -1,4 +1,5 @@
 import { Component, OnInit } from '@angular/core';
+import { PlotService, PlotType } from '../plot.service';
 
 @Component({
   selector: 'pdb-visualization-page',
@@ -6,10 +7,26 @@ import { Component, OnInit } from '@angular/core';
   styleUrls: ['./visualization-page.component.scss']
 })
 export class VisualizationPageComponent implements OnInit {
+  
+  selectedPlotType: string;
+  plotTypes: Array<any>;
+  
+  selectedCombinePlotType: string;
+  combinePlotTypes: Array<any>;
+  
+  tagFields: Array<any>;
 
-  constructor() { }
+  constructor(private plotService: PlotService) {
+  }
 
   ngOnInit() {
+    this.plotTypes = this.plotService.getPlotTypes();
+    this.selectedPlotType = this.plotTypes[0].name;
+    
+    this.combinePlotTypes = this.plotTypes;
+    
+    
+    this.tagFields = this.plotService.getTagFields();
   }
 
 }