working on color schemes
This commit is contained in:
Thomas Breloff
parent
78045fd2ab
commit
1de3decede
@ -76,60 +76,265 @@
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},
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{
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"cell_type": "code",
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"execution_count": 25,
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"execution_count": 12,
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"metadata": {
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"collapsed": false
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},
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"outputs": [
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{
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"data": {
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"image/svg+xml": [
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"<?xml version\"1.0\" encoding=\"UTF-8\"?>\n",
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"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
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" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
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"<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\"\n",
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" width=\"25mm\" height=\"25mm\" viewBox=\"0 0 1 1\">\n",
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" <rect width=\"1\" height=\"1\"\n",
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" fill=\"#0000FF\" stroke=\"none\"/>\n",
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"</svg>\n"
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],
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"text/plain": [
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"9-element Array{Symbol,1}:\n",
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" :layers \n",
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" :data_source\n",
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" :data \n",
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" :scales \n",
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" :statistics \n",
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" :coord \n",
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" :guides \n",
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" :theme \n",
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" :mapping "
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"RGB{U8}(0.0,0.0,1.0)"
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]
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},
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"execution_count": 25,
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"metadata": {},
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"output_type": "display_data"
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},
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"data": {
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"image/svg+xml": [
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"<?xml version\"1.0\" encoding=\"UTF-8\"?>\n",
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"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
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" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
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"<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\"\n",
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" width=\"25mm\" height=\"25mm\" viewBox=\"0 0 1 1\">\n",
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" <rect width=\"1\" height=\"1\"\n",
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" fill=\"#4B35D0\" stroke=\"none\"/>\n",
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"</svg>\n"
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],
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"text/plain": [
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"RGB{Float64}(0.29284122574765004,0.20616016088988381,0.8154590567565114)"
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},
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"metadata": {},
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"output_type": "display_data"
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},
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{
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"data": {
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"image/svg+xml": [
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"<?xml version\"1.0\" encoding=\"UTF-8\"?>\n",
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"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
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" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
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"<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\"\n",
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" width=\"25mm\" height=\"25mm\" viewBox=\"0 0 1 1\">\n",
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" <rect width=\"1\" height=\"1\"\n",
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" fill=\"#584DA2\" stroke=\"none\"/>\n",
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"</svg>\n"
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],
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"text/plain": [
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"RGB{Float64}(0.34473316201852744,0.30261169288286327,0.6359164489679165)"
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]
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},
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"metadata": {},
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"output_type": "display_data"
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},
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{
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"data": {
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"image/svg+xml": [
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"<?xml version\"1.0\" encoding=\"UTF-8\"?>\n",
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"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
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" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
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"<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\"\n",
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" width=\"25mm\" height=\"25mm\" viewBox=\"0 0 1 1\">\n",
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" <rect width=\"1\" height=\"1\"\n",
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" fill=\"#556075\" stroke=\"none\"/>\n",
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"</svg>\n"
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],
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"text/plain": [
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"RGB{Float64}(0.3320652279465807,0.37816870085640947,0.4597207917942931)"
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]
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},
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"metadata": {},
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"output_type": "display_data"
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},
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{
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"data": {
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"image/svg+xml": [
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"<?xml version\"1.0\" encoding=\"UTF-8\"?>\n",
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"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
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" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
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"<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\"\n",
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" width=\"25mm\" height=\"25mm\" viewBox=\"0 0 1 1\">\n",
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" <rect width=\"1\" height=\"1\"\n",
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" fill=\"#427147\" stroke=\"none\"/>\n",
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"</svg>\n"
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],
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"text/plain": [
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"RGB{Float64}(0.2606854798779104,0.4433586313880962,0.27940782734210995)"
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]
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},
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"metadata": {},
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"output_type": "display_data"
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},
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{
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"data": {
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"image/svg+xml": [
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"<?xml version\"1.0\" encoding=\"UTF-8\"?>\n",
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"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
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" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
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"<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\"\n",
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" width=\"25mm\" height=\"25mm\" viewBox=\"0 0 1 1\">\n",
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" <rect width=\"1\" height=\"1\"\n",
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" fill=\"#008000\" stroke=\"none\"/>\n",
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"</svg>\n"
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],
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"text/plain": [
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"RGB{Float64}(2.135658170401844e-7,0.5019607992717322,0.0)"
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]
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},
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"metadata": {},
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"output_type": "display_data"
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},
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{
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"data": {
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"image/svg+xml": [
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"<?xml version\"1.0\" encoding=\"UTF-8\"?>\n",
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"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
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" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
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"<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\"\n",
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" width=\"25mm\" height=\"25mm\" viewBox=\"0 0 1 1\">\n",
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" <rect width=\"1\" height=\"1\"\n",
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" fill=\"#5F7B00\" stroke=\"none\"/>\n",
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"</svg>\n"
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],
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"text/plain": [
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"RGB{Float64}(0.37220781950534426,0.4811025938574362,0.0)"
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]
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},
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"metadata": {},
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"output_type": "display_data"
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},
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{
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"data": {
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"image/svg+xml": [
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"<?xml version\"1.0\" encoding=\"UTF-8\"?>\n",
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"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
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" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
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"<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\"\n",
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" width=\"25mm\" height=\"25mm\" viewBox=\"0 0 1 1\">\n",
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" <rect width=\"1\" height=\"1\"\n",
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" fill=\"#8D7200\" stroke=\"none\"/>\n",
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"</svg>\n"
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],
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"text/plain": [
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"RGB{Float64}(0.5528978474402565,0.445996276949532,0.0)"
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]
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},
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"metadata": {},
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"output_type": "display_data"
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},
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{
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"data": {
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"image/svg+xml": [
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"<?xml version\"1.0\" encoding=\"UTF-8\"?>\n",
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"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
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" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
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"<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\"\n",
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" width=\"25mm\" height=\"25mm\" viewBox=\"0 0 1 1\">\n",
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" <rect width=\"1\" height=\"1\"\n",
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" fill=\"#B56300\" stroke=\"none\"/>\n",
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"</svg>\n"
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],
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"text/plain": [
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"RGB{Float64}(0.709264766923926,0.3896484083057615,0.0)"
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]
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},
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"metadata": {},
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"output_type": "display_data"
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},
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{
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"data": {
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"image/svg+xml": [
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"<?xml version\"1.0\" encoding=\"UTF-8\"?>\n",
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"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
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" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
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"<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\"\n",
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" width=\"25mm\" height=\"25mm\" viewBox=\"0 0 1 1\">\n",
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" <rect width=\"1\" height=\"1\"\n",
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" fill=\"#DA4B00\" stroke=\"none\"/>\n",
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"</svg>\n"
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],
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"text/plain": [
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"RGB{Float64}(0.8565683200929008,0.294237959040753,0.0)"
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]
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},
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"metadata": {},
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"output_type": "display_data"
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},
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{
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"data": {
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"image/svg+xml": [
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"<?xml version\"1.0\" encoding=\"UTF-8\"?>\n",
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"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
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" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
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"<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\"\n",
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" width=\"25mm\" height=\"25mm\" viewBox=\"0 0 1 1\">\n",
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" <rect width=\"1\" height=\"1\"\n",
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" fill=\"#FF0000\" stroke=\"none\"/>\n",
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"</svg>\n"
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],
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"text/plain": [
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"RGB{Float64}(0.9999999006125039,2.0222806256020575e-6,0.0)"
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]
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},
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"metadata": {},
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"output_type": "display_data"
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},
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{
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"data": {
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"text/plain": [
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"11-element Array{Void,1}:\n",
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" nothing\n",
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" nothing\n",
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" nothing\n",
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" nothing\n",
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" nothing\n",
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" nothing\n",
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" nothing\n",
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" nothing\n",
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" nothing\n",
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" nothing\n",
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" nothing"
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]
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},
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"execution_count": 12,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"fieldnames(p.o[2])"
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"using Plots\n",
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"grad = Plots.ColorGradient([colorant\"blue\", colorant\"green\", colorant\"red\"], [0,0.5,1])\n",
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"map(display, [Plots.getColor(grad, x) for x in 0:0.1:1])"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 32,
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"execution_count": null,
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"metadata": {
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"collapsed": false
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"collapsed": true
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},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"4-element Array{Gadfly.GuideElement,1}:\n",
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" Gadfly.Guide.ManualColorKey{ColorTypes.Color{T,N}}(\"\",AbstractString[\"y1\"],ColorTypes.Color[RGB{Float64}(0.0,0.0,0.0)])\n",
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" Gadfly.Guide.XLabel(\"\",:auto) \n",
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" Gadfly.Guide.YLabel(\"\",:auto) \n",
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" Gadfly.Guide.Title(\"\") "
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]
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},
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"execution_count": 32,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"p.o[2].guides"
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]
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"outputs": [],
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"source": []
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"collapsed": true
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},
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"outputs": [],
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"source": []
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},
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{
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"cell_type": "code",
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File diff suppressed because one or more lines are too long
@ -69,12 +69,81 @@ const _masterColorList = [
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]
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# --------------------------------------------------------------
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convertColor(c::Union{AbstractString, Symbol}) = parse(Colorant, string(c))
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convertColor(c::Colorant) = c
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convertColor(cvec::AbstractVector) = map(convertColor, cvec)
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# --------------------------------------------------------------
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abstract ColorScheme
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# --------------------------------------------------------------
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"Continuous gradient between values. Wraps a list of bounding colors and the values they represent."
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type ColorGradient <: ColorScheme
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colors::Vector{Colorant}
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values::Vector{Float64}
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end
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function getColor(gradient::ColorGradient, z::Real, idx::Int)
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cs = gradient.colors
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vs = gradient.values
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n = length(cs)
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@assert n > 0 && n == length(vs)
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# can we just return the first color?
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if z <= vs[1] || n == 1
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return cs[1]
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end
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# find the bounding colors and interpolate
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for i in 2:n
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if z <= vs[i]
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return interpolateColor(cs[i-1], cs[i], (z - vs[i-1]) / (vs[i] - vs[i-1]))
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end
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end
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# if we get here, return the last color
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cs[end]
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end
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function interpolateColor(c1::Colorant, c2::Colorant, w::Real)
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lab1 = Lab(c1)
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lab2 = Lab(c2)
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l = (1-w) * lab1.l + w * lab2.l
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a = (1-w) * lab1.a + w * lab2.a
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b = (1-w) * lab1.b + w * lab2.b
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RGB(Lab(l, a, b))
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end
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# --------------------------------------------------------------
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"Wraps a function, taking a z-value and index and returning a Colorant"
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type ColorFunction <: ColorScheme
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f::Function
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end
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typealias CFun ColorFunction
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getColor(grad::ColorFunction, z::Real, idx::Int) = grad.f(z, idx)
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# --------------------------------------------------------------
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"Wraps a vector of colors... may be Symbol/String or a Colorant"
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type ColorVector{V<:AbstractVector} <: ColorScheme
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v::V
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end
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typealias CVec ColorVector
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getColor(grad::ColorVector, z::Real, idx::Int) = convertColor(grad.v[mod1(idx, length(grad.v))])
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# --------------------------------------------------------------
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isbackgrounddark(bgcolor::Color) = Lab(bgcolor).l < 0.5
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# move closer to lighter/darker depending on background value
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