diff options
Diffstat (limited to 'wqflask/utility/Plot.py')
| -rw-r--r-- | wqflask/utility/Plot.py | 298 |
1 files changed, 174 insertions, 124 deletions
diff --git a/wqflask/utility/Plot.py b/wqflask/utility/Plot.py index cce8435d..d4256a46 100644 --- a/wqflask/utility/Plot.py +++ b/wqflask/utility/Plot.py @@ -24,32 +24,36 @@ # # Last updated by GeneNetwork Core Team 2010/10/20 -from __future__ import print_function - -import piddle as pid -from pprint import pformat as pf +from PIL import ImageColor +from PIL import ImageDraw +from PIL import ImageFont from math import * -import random -import sys, os -from numarray import linear_algebra as la -from numarray import ones, array, dot, swapaxes - -import reaper -import webqtlUtil -import corestats +import utility.corestats as corestats from base import webqtlConfig - +from utility.pillow_utils import draw_rotated_text import utility.logger -logger = utility.logger.getLogger(__name__ ) +logger = utility.logger.getLogger(__name__) + +# ---- Define common colours ---- # +BLUE = ImageColor.getrgb("blue") +BLACK = ImageColor.getrgb("black") +# ---- END: Define common colours ---- # + +# ---- FONT FILES ---- # +VERDANA_FILE = "./wqflask/static/fonts/verdana.ttf" +COUR_FILE = "./wqflask/static/fonts/courbd.ttf" +TAHOMA_FILE = "./wqflask/static/fonts/tahoma.ttf" +# ---- END: FONT FILES ---- # + def cformat(d, rank=0): 'custom string format' strD = "%2.6f" % d if rank == 0: - while strD[-1] in ('0','.'): + while strD[-1] in ('0', '.'): if strD[-1] == '0' and strD[-2] == '.' and len(strD) <= 4: break elif strD[-1] == '.': @@ -65,22 +69,24 @@ def cformat(d, rank=0): strD = '0.0' return strD + def frange(start, end=None, inc=1.0): "A faster range-like function that does accept float increments..." if end == None: end = start + 0.0 start = 0.0 else: - start += 0.0 # force it to be a float + start += 0.0 # force it to be a float count = int((end - start) / inc) if start + count * inc != end: - # Need to adjust the count. AFAICT, it always comes up one short. + # Need to adjust the count. AFAICT, it always comes up one short. count += 1 L = [start] * count - for i in xrange(1, count): + for i in range(1, count): L[i] = start + i * inc return L + def find_outliers(vals): """Calculates the upper and lower bounds of a set of sample/case values @@ -88,7 +94,7 @@ def find_outliers(vals): >>> find_outliers([3.504, 5.234, 6.123, 7.234, 3.542, 5.341, 7.852, 4.555, 12.537]) (11.252500000000001, 0.5364999999999993) - >>> >>> find_outliers([9,12,15,17,31,50,7,5,6,8]) + >>> find_outliers([9,12,15,17,31,50,7,5,6,8]) (32.0, -8.0) If there are no vals, returns None for the upper and lower bounds, @@ -116,129 +122,163 @@ def find_outliers(vals): # parameter: data is either object returned by reaper permutation function (called by MarkerRegressionPage.py) # or the first object returned by direct (pair-scan) permu function (called by DirectPlotPage.py) -def plotBar(canvas, data, barColor=pid.blue, axesColor=pid.black, labelColor=pid.black, XLabel=None, YLabel=None, title=None, offset= (60, 20, 40, 40), zoom = 1): + + +def plotBar(canvas, data, barColor=BLUE, axesColor=BLACK, labelColor=BLACK, XLabel=None, YLabel=None, title=None, offset=(60, 20, 40, 40), zoom=1): + im_drawer = ImageDraw.Draw(canvas) xLeftOffset, xRightOffset, yTopOffset, yBottomOffset = offset plotWidth = canvas.size[0] - xLeftOffset - xRightOffset plotHeight = canvas.size[1] - yTopOffset - yBottomOffset - if plotHeight<=0 or plotWidth<=0: - return + if plotHeight <= 0 or plotWidth <= 0: + return if len(data) < 2: - return + return max_D = max(data) min_D = min(data) - #add by NL 06-20-2011: fix the error: when max_D is infinite, log function in detScale will go wrong - if max_D == float('inf') or max_D>webqtlConfig.MAXLRS: - max_D=webqtlConfig.MAXLRS #maximum LRS value + # add by NL 06-20-2011: fix the error: when max_D is infinite, log function in detScale will go wrong + if (max_D == float('inf') or max_D > webqtlConfig.MAXLRS) and min_D < webqtlConfig.MAXLRS: + max_D = webqtlConfig.MAXLRS # maximum LRS value xLow, xTop, stepX = detScale(min_D, max_D) - #reduce data - #ZS: Used to determine number of bins for permutation output - step = ceil((xTop-xLow)/50.0) + # reduce data + # ZS: Used to determine number of bins for permutation output + step = ceil((xTop - xLow) / 50.0) j = xLow dataXY = [] Count = [] while j <= xTop: - dataXY.append(j) - Count.append(0) - j += step + dataXY.append(j) + Count.append(0) + j += step for i, item in enumerate(data): - if item == float('inf') or item>webqtlConfig.MAXLRS: - item = webqtlConfig.MAXLRS #maximum LRS value - j = int((item-xLow)/step) - Count[j] += 1 + if (item == float('inf') or item > webqtlConfig.MAXLRS) and min_D < webqtlConfig.MAXLRS: + item = webqtlConfig.MAXLRS # maximum LRS value + j = int((item - xLow) / step) + Count[j] += 1 - yLow, yTop, stepY=detScale(0,max(Count)) + yLow, yTop, stepY = detScale(0, max(Count)) - #draw data - xScale = plotWidth/(xTop-xLow) - yScale = plotHeight/(yTop-yLow) - barWidth = xScale*step + # draw data + xScale = plotWidth / (xTop - xLow) + yScale = plotHeight / (yTop - yLow) + barWidth = xScale * step for i, count in enumerate(Count): - if count: - xc = (dataXY[i]-xLow)*xScale+xLeftOffset - yc =-(count-yLow)*yScale+yTopOffset+plotHeight - canvas.drawRect(xc+2,yc,xc+barWidth-2,yTopOffset+plotHeight,edgeColor=barColor,fillColor=barColor) - - #draw drawing region - canvas.drawRect(xLeftOffset, yTopOffset, xLeftOffset+plotWidth, yTopOffset+plotHeight) - - #draw scale - scaleFont=pid.Font(ttf="cour",size=11,bold=1) - x=xLow - for i in range(int(stepX)+1): - xc=xLeftOffset+(x-xLow)*xScale - canvas.drawLine(xc,yTopOffset+plotHeight,xc,yTopOffset+plotHeight+5, color=axesColor) - strX = cformat(d=x, rank=0) - canvas.drawString(strX,xc-canvas.stringWidth(strX,font=scaleFont)/2,yTopOffset+plotHeight+14,font=scaleFont) - x+= (xTop - xLow)/stepX - - y=yLow - for i in range(int(stepY)+1): - yc=yTopOffset+plotHeight-(y-yLow)*yScale - canvas.drawLine(xLeftOffset,yc,xLeftOffset-5,yc, color=axesColor) - strY = "%d" %y - canvas.drawString(strY,xLeftOffset-canvas.stringWidth(strY,font=scaleFont)-6,yc+5,font=scaleFont) - y+= (yTop - yLow)/stepY - - #draw label - labelFont=pid.Font(ttf="tahoma",size=17,bold=0) + if count: + xc = (dataXY[i] - xLow) * xScale + xLeftOffset + yc = -(count - yLow) * yScale + yTopOffset + plotHeight + im_drawer.rectangle( + xy=((xc + 2, yc), (xc + barWidth - 2, yTopOffset + plotHeight)), + outline=barColor, fill=barColor) + + # draw drawing region + im_drawer.rectangle( + xy=((xLeftOffset, yTopOffset), + (xLeftOffset + plotWidth, yTopOffset + plotHeight)) + ) + + # draw scale + scaleFont = ImageFont.truetype(font=COUR_FILE, size=11) + x = xLow + for i in range(int(stepX) + 1): + xc = xLeftOffset + (x - xLow) * xScale + im_drawer.line( + xy=((xc, yTopOffset + plotHeight), + (xc, yTopOffset + plotHeight + 5)), + fill=axesColor) + strX = cformat(d=x, rank=0) + im_drawer.text( + text=strX, + xy=(xc - im_drawer.textsize(strX, font=scaleFont)[0] / 2, + yTopOffset + plotHeight + 14), font=scaleFont) + x += (xTop - xLow) / stepX + + y = yLow + for i in range(int(stepY) + 1): + yc = yTopOffset + plotHeight - (y - yLow) * yScale + im_drawer.line( + xy=((xLeftOffset, yc), (xLeftOffset - 5, yc)), fill=axesColor) + strY = "%d" % y + im_drawer.text( + text=strY, + xy=(xLeftOffset - im_drawer.textsize(strY, + font=scaleFont)[0] - 6, yc + 5), + font=scaleFont) + y += (yTop - yLow) / stepY + + # draw label + labelFont = ImageFont.truetype(font=TAHOMA_FILE, size=17) if XLabel: - canvas.drawString(XLabel,xLeftOffset+(plotWidth-canvas.stringWidth(XLabel,font=labelFont))/2.0, - yTopOffset+plotHeight+yBottomOffset-10,font=labelFont,color=labelColor) + im_drawer.text( + text=XLabel, + xy=(xLeftOffset + ( + plotWidth - im_drawer.textsize(XLabel, font=labelFont)[0]) / 2.0, + yTopOffset + plotHeight + yBottomOffset - 10), + font=labelFont, fill=labelColor) if YLabel: - canvas.drawString(YLabel, 19, yTopOffset+plotHeight-(plotHeight-canvas.stringWidth(YLabel,font=labelFont))/2.0, - font=labelFont,color=labelColor,angle=90) - - labelFont=pid.Font(ttf="verdana",size=16,bold=0) + draw_rotated_text(canvas, text=YLabel, + xy=(19, + yTopOffset + plotHeight - ( + plotHeight - im_drawer.textsize( + YLabel, font=labelFont)[0]) / 2.0), + font=labelFont, fill=labelColor, angle=90) + + labelFont = ImageFont.truetype(font=VERDANA_FILE, size=16) if title: - canvas.drawString(title,xLeftOffset+(plotWidth-canvas.stringWidth(title,font=labelFont))/2.0, - 20,font=labelFont,color=labelColor) + im_drawer.text( + text=title, + xy=(xLeftOffset + (plotWidth - im_drawer.textsize( + title, font=labelFont)[0]) / 2.0, + 20), + font=labelFont, fill=labelColor) # This function determines the scale of the plot -def detScaleOld(min,max): - if min>=max: + + +def detScaleOld(min, max): + if min >= max: return None elif min == -1.0 and max == 1.0: - return [-1.2,1.2,12] + return [-1.2, 1.2, 12] else: - a=max-min - b=floor(log10(a)) - c=pow(10.0,b) - if a < c*5.0: - c/=2.0 - #print a,b,c - low=c*floor(min/c) - high=c*ceil(max/c) - return [low,high,round((high-low)/c)] - -def detScale(min=0,max=0): - - if min>=max: + a = max - min + b = floor(log10(a)) + c = pow(10.0, b) + if a < c * 5.0: + c /= 2.0 + # print a,b,c + low = c * floor(min / c) + high = c * ceil(max / c) + return [low, high, round((high - low) / c)] + + +def detScale(min=0, max=0): + + if min >= max: return None elif min == -1.0 and max == 1.0: - return [-1.2,1.2,12] + return [-1.2, 1.2, 12] else: - a=max-min + a = max - min if max != 0: - max += 0.1*a + max += 0.1 * a if min != 0: - if min > 0 and min < 0.1*a: + if min > 0 and min < 0.1 * a: min = 0.0 else: - min -= 0.1*a - a=max-min - b=floor(log10(a)) - c=pow(10.0,b) - low=c*floor(min/c) - high=c*ceil(max/c) - n = round((high-low)/c) + min -= 0.1 * a + a = max - min + b = floor(log10(a)) + c = pow(10.0, b) + low = c * floor(min / c) + high = c * ceil(max / c) + n = round((high - low) / c) div = 2.0 while n < 5 or n > 15: if n < 5: @@ -246,50 +286,60 @@ def detScale(min=0,max=0): else: c *= div if div == 2.0: - div =5.0 + div = 5.0 else: - div =2.0 - low=c*floor(min/c) - high=c*ceil(max/c) - n = round((high-low)/c) + div = 2.0 + low = c * floor(min / c) + high = c * ceil(max / c) + n = round((high - low) / c) + + return [low, high, n] - return [low,high,n] def bluefunc(x): - return 1.0 / (1.0 + exp(-10*(x-0.6))) + return 1.0 / (1.0 + exp(-10 * (x - 0.6))) + def redfunc(x): - return 1.0 / (1.0 + exp(10*(x-0.5))) + return 1.0 / (1.0 + exp(10 * (x - 0.5))) + def greenfunc(x): - return 1 - pow(redfunc(x+0.2),2) - bluefunc(x-0.3) + return 1 - pow(redfunc(x + 0.2), 2) - bluefunc(x - 0.3) + def colorSpectrum(n=100): multiple = 10 if n == 1: - return [pid.Color(1,0,0)] + return [ImageColor.getrgb("rgb(100%,0%,0%)")] elif n == 2: - return [pid.Color(1,0,0),pid.Color(0,0,1)] + return [ImageColor.getrgb("100%,0%,0%)"), + ImageColor.getrgb("rgb(0%,0%,100%)")] elif n == 3: - return [pid.Color(1,0,0),pid.Color(0,1,0),pid.Color(0,0,1)] - N = n*multiple - out = [None]*N; + return [ImageColor.getrgb("rgb(100%,0%,0%)"), + ImageColor.getrgb("rgb(0%,100%,0%)"), + ImageColor.getrgb("rgb(0%,0%,100%)")] + N = n * multiple + out = [None] * N for i in range(N): - x = float(i)/N - out[i] = pid.Color(redfunc(x), greenfunc(x), bluefunc(x)); + x = float(i) / N + out[i] = ImageColor.getrgb("rgb({}%,{}%,{}%".format( + *[int(i * 100) for i in ( + redfunc(x), greenfunc(x), bluefunc(x))])) out2 = [out[0]] - step = N/float(n-1) + step = N / float(n - 1) j = 0 - for i in range(n-2): + for i in range(n - 2): j += step out2.append(out[int(j)]) out2.append(out[-1]) return out2 + def _test(): import doctest doctest.testmod() -if __name__=="__main__": - _test() \ No newline at end of file +if __name__ == "__main__": + _test() |