mckero/Look4Sat-BA7OPF
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Added sepia and grayscale map filters for testing

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Arty Bishop committed 2020-09-19 20:19:41 +01:00
1 parent c352d66e49
commit 596b13a8de
1 file changed
+24 -64
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app/src/main/java/com/rtbishop/look4sat/ui/fragments/MapOsmFragment.kt
+24 -64
View File
@@ -92,7 +92,7 @@ class MapOsmFragment : Fragment(R.layout.fragment_map_osm) {
overlayManager.tilesOverlay.loadingLineColor = Color.TRANSPARENT
setScrollableAreaLimitDouble(BoundingBox(85.05, 180.0, -85.05, -180.0))
addExperimentColorFilter()
addColorFilter()
// fill overlays
overlays.add(0, gspOverlay)
@@ -304,7 +304,7 @@ class MapOsmFragment : Fragment(R.layout.fragment_map_osm) {
binding.mapView.overlays.add(overlay)
}
private fun addExperimentColorFilter() {
private fun addColorFilter() {
val negativeArray = floatArrayOf(
-1.0f, .0f, .0f, .0f, 255.0f,
@@ -314,18 +314,35 @@ class MapOsmFragment : Fragment(R.layout.fragment_map_osm) {
)
val negativeMatrix = ColorMatrix(negativeArray)
val grayScaleArray = floatArrayOf(
0.2126f, 0.7152f, 0.0722f, 0f, 0f,
0.2126f, 0.7152f, 0.0722f, 0f, 0f,
0.2126f, 0.7152f, 0.0722f, 0f, 0f,
0f, 0f, 0f, 1f, 0f
)
val grayScaleMatrix = ColorMatrix(grayScaleArray)
val destinationColor = Color.parseColor("#FF2A2A2A")
val lr = (255.0f - Color.red(destinationColor)) / 255.0f
val lg = (255.0f - Color.green(destinationColor)) / 255.0f
val lb = (255.0f - Color.blue(destinationColor)) / 255.0f
val grayScaleArray = floatArrayOf(
val tintedGrayScaleArray = floatArrayOf(
lr, lg, lb, 0f, 0f,
lr, lg, lb, 0f, 0f,
lr, lg, lb, 0f, 0f,
0f, 0f, 0f, 0f, 255f
)
val grayScaleMatrix = ColorMatrix(grayScaleArray)
grayScaleMatrix.preConcat(negativeMatrix)
val tintedGrayScaleMatrix = ColorMatrix(tintedGrayScaleArray)
tintedGrayScaleMatrix.preConcat(negativeMatrix)
val sepiaArray = floatArrayOf(
0.393f, 0.769f, 0.189f, .0f, .0f,
0.349f, 0.686f, 0.168f, .0f, .0f,
0.272f, 0.534f, 0.131f, .0f, .0f,
.0f, .0f, .0f, 1.0f, .0f
)
val sepiaMatrix = ColorMatrix(sepiaArray)
sepiaMatrix.preConcat(tintedGrayScaleMatrix)
val dr = Color.red(destinationColor)
val dg = Color.green(destinationColor)
@@ -340,66 +357,9 @@ class MapOsmFragment : Fragment(R.layout.fragment_map_osm) {
0f, 0f, 0f, 1f, 0f
)
val tintMatrix = ColorMatrix(tintArray)
tintMatrix.preConcat(grayScaleMatrix)
val filter = ColorMatrixColorFilter(tintMatrix)
binding.mapView.overlayManager.tilesOverlay.setColorFilter(filter)
}
private fun addColorFilter() {
val negativeArray = floatArrayOf(
-1.0f, .0f, .0f, .0f, 255.0f,
.0f, -1.0f, .0f, .0f, 255.0f,
.0f, .0f, -1.0f, .0f, 255.0f,
.0f, .0f, .0f, 1.0f, .0f
)
val negativeMatrix = ColorMatrix(negativeArray)
val destinationColor = Color.parseColor("#FF2A2A2A")
val lr = (255.0f - Color.red(destinationColor)) / 255.0f
val lg = (255.0f - Color.green(destinationColor)) / 255.0f
val lb = (255.0f - Color.blue(destinationColor)) / 255.0f
val grayScaleArray = floatArrayOf(
lr, lg, lb, 0f, 0f, //
lr, lg, lb, 0f, 0f, //
lr, lg, lb, 0f, 0f, //
0f, 0f, 0f, 0f, 255f //
)
val grayScaleMatrix = ColorMatrix(grayScaleArray)
grayScaleMatrix.preConcat(negativeMatrix)
val dr = Color.red(destinationColor)
val dg = Color.green(destinationColor)
val db = Color.blue(destinationColor)
val drf = dr / 255f
val dgf = dg / 255f
val dbf = db / 255f
val tintArray = floatArrayOf(
drf, 0f, 0f, 0f, 0f, //
0f, dgf, 0f, 0f, 0f, //
0f, 0f, dbf, 0f, 0f, //
0f, 0f, 0f, 1f, 0f //
)
val tintMatrix = ColorMatrix(tintArray)
tintMatrix.preConcat(grayScaleMatrix)
val lDest = drf * lr + dgf * lg + dbf * lb
val scale = 1f - lDest
val translate = 1 - scale * 0.5f
val scaleArray = floatArrayOf(
scale, 0f, 0f, 0f, dr * translate, //
0f, scale, 0f, 0f, dg * translate, //
0f, 0f, scale, 0f, db * translate, //
0f, 0f, 0f, 1f, 0f
)
val scaleMatrix = ColorMatrix(scaleArray)
scaleMatrix.preConcat(tintMatrix)
val filter = ColorMatrixColorFilter(scaleMatrix)
tintMatrix.preConcat(tintedGrayScaleMatrix)
val filter = ColorMatrixColorFilter(sepiaMatrix)
binding.mapView.overlayManager.tilesOverlay.setColorFilter(filter)
}