mapserver/initialrenderer/renderer.go

package initialrenderer

import (
  "mapserver/tilerenderer"
  "mapserver/layerconfig"
  "mapserver/coords"
  "github.com/sirupsen/logrus"
  "time"

)

func Render(tr *tilerenderer.TileRenderer,
  layers []layerconfig.Layer){

    start := time.Now()
    complete_count := 512*512
    current_count := 0

    for _, layer := range(layers) {

    	// zoom:1 == length=1
    	// zoom:2 == length=2
    	// zoom:3 == length=4
    	// zoom:4 == length=8
    	// zoom:5 == length=16
    	// zoom:6 == length=32
    	// zoom:7 == length=64
    	// zoom:8 == length=128
    	// zoom:9 == length=256
    	// zoom:10 == length=512
    	// zoom:11 == length=1024
    	// zoom:12 == length=2048
    	// zoom:13 == length=4096

    	//zoom 10 iterator
    	for x := -255; x<256; x++ {
    		for y := -255; y<256; y++ {
    			tc := coords.NewTileCoords(x,y,10,layer.Id)
    			_, err := tr.Render(tc)
          current_count++

    			if err != nil {
    				panic(err)
    			}

          if time.Now().Sub(start).Seconds() > 2 {
            start = time.Now()
            progress := float64(current_count) / float64(complete_count) * 100

            fields := logrus.Fields{
              "x": x,
              "y": y,
              "progress%": progress,
              "layer": layer.Name,
            }

            logrus.WithFields(fields).Info("Initial render progress")
          }
    		}
    	}

    }
}