我希望实现几个功能,以增加我的程序的输出.
我想将一列文本的背景设置为某种颜色,以便它
更清楚的是列属于一起.
我想将一列文本的背景设置为某种颜色,以便它
更清楚的是列属于一起.
一张图片胜过千言万语：
我想转换这个：
Pos. :123456789012345 Name. :ABCDEFGHIJKLMNO Str. :SOMESTRINGSOMET <---- indented by half a row,Column number superscripted Str. :SOM SOMET Str. :SOMESTRIN ET
对此：
我怎么能用python做到这一点？是否有一个框架可以让我这样做？
我把它转换成了乳胶,但我不能让上标数字起作用.它们需要在文本之上,但不能充当角色,因为图片的列之间存在关系.
Example: A is at position 1. It has as Properties S and O,thats why it is on top of those two and that is why there is an indent of half a character. S has the superscript 170,T has the superscript 185.
特别难的也是Str部分被半个字符移动的部分.我想有一个例子可以集成到我的程序中.
解决方法
有可能提出棘手的解决方案,考虑单声道间隔字体,可以解决您的问题.但他们只是等着失败.您帖子中的灰色列可以完全按照图中的颜色添加,但我选择不改变字母中的颜色(因为我发现它更具可读性).
PIL可以提供以下内容：
略微改变字体：
接下来会有更“严重”的字体更改,所有字体都按原样生成.
接下来是生成这些数字的代码.我并没有真正做到这一点,它可以在很多方面得到改善.将此视为您需要做的事情的一个示例,可能会为您的问题找到解决方案.要使用任何类型的字体,您需要一个实际的排版系统,例如LaTeX.
import sys
import Image,ImageDraw,ImageFont
# Assumption: some other piece of code separates the data in the following
# format.
line1 = [("Pos. :",0),("123456789012345",0)]
line2 = [("Name. :",("ABCDEFGHIJKLMNO",0)]
line3 = [("Str. ",(":",-0.5),("SOMESTRINGSOMEST",-0.5)]
line4 = [("Wave 1:",("_XXXX_X____X_X_",0)]
line5 = [("Wave 2:",("__XX_XXX_X__X_X",0)]
line_data = [line1,line2,line3,line4,line5]
# Texts to draw over the last element,in specific positions,# of lines present in line_data.
subscript = {
2: { # Meaning: third item in line_data
0: "170",# Meaning: draw "170" over the first char
len(line3[-1][0]) - 1: "185",# Draw "185" over the last char
7: "180",# Meaning: draw "180" over the eight char
},4: {5: "hi"},3: {6: "ops"}
}
# If the following fonts are not mono spaced,you are going to suffer.
#
# Normal font.
font = ImageFont.truetype('FreeMono.ttf',40)
# Font for subscript.
font_tiny = ImageFont.truetype('FreeMono.ttf',20)
im = Image.new("RGBA",(1000,1000),'white')
draw = ImageDraw.Draw(im)
line_offset = 4
start_y = 6
width_A,height_A = font.getsize('A')
_,height_tiny_A = font_tiny.getsize('A')
# Collect even columns from the last item of list line1.
even_columns = []
x = 0
for i,(text,_) in enumerate(line1):
for j,letter in enumerate(text):
if i == len(line1) - 1 and not j % 2:
even_columns.append(x)
x += width_A
# Write all lines.
width = 0
l_start_y = start_y
for di,data in enumerate(line_data):
x = 0
for i,xoff) in enumerate(data):
for j,letter in enumerate(text):
# Apply x offset.
extra = width_A * xoff
draw.text((x + extra,l_start_y),letter,font=font,fill='black')
x += width_A
width = max(x,width)
l_start_y += height_A + line_offset
# Collect letter positions from the lines that will have subscripts.
letter_pos = {}
for k in subscript:
letter_pos[k] = {}
x = sum(len(text) for text,_ in line_data[k][:-1]) * width_A
text,xoff = line_data[k][-1]
for i in range(len(text)):
extra = width_A * xoff
letter_pos[k][i] = x + extra
x += width_A
# Write all subscripts.
for k,v in subscript.items():
line = line_data[k]
for pos,text in v.items():
x = letter_pos[k][pos]
y = start_y + (line_offset + height_A) * k
y -= height_tiny_A * 0.4 # XXX A poor heuristic that worked here.
draw.text((x,y),text,font=font_tiny,fill='black')
width = max(width,int(x + font_tiny.getsize(text)[0]))
# Draw grey columns.
columns = Image.new(im.mode,im.size,'white')
mask = Image.new("L",'white')
for x in even_columns:
columns.paste((128,128,128),(x,line_offset,x + width_A,l_start_y))
mask.paste(164,)
im = Image.composite(im,columns,mask)
# Crop and save the resulting image.
im.crop((0,width,l_start_y + 2)).save(sys.argv[1])