Image Magic根据文本点数对齐文本点(Image Magick align text points based on number of text points)

 是否有可能以某种方式得到一个人在图像魔法中绘制的文本的宽度？ 
 
 我当前的convert命令如下所示： 
 
 
 
 convert -size 720x480 -background＃000 xc：black -fill white -stroke white \ -font Arial -pointsize 18 \ -draw“text 72,370'NavP1'”\ -font Arial -pointsize 18 \ -draw“text，''” \ -font Arial -pointsize 18 \ -draw“text，''”\ -font Arial -pointsize 18 \ -draw“text 370,370'Extras'”\ -font Arial -pointsize 18 \ -draw“text 430,370'opt'” \ -font Arial -pointsize 18 \ -draw“text 550,370'NavP1'”\ C：\ xampp \ htdocs \ labelText.bmp 
 
 
 我以编程方式执行此操作，并希望根据我有多少导航点将导航点对齐并相互对齐 
 
 （我从我的php formular / database获得了导航点的数量）。 
 
 这是我的意思和它应该是什么样子的一个小草图 
 
________________________________________
|                                       |
|                                       |
|                                       |
|             navp1  navp2              |
|_______________________________________|

________________________________________
|                                       |
|                                       |
|                                       |
|         navp1  navp2  navp3           |
|_______________________________________|
 
 我对该图像有一个固定的宽度（720px）。 
 
 因此，我有最少2个导航点和最多6个导航点。 
 
 我的想法是，如果我能得到每个导航（文本/单词）点的宽度，我可以正确计算和对齐点。 
 
 但是知道我找不到这样做的功能。 
 
 我试过Mark Setchell，但我的命令似乎有误 
 
 
 
 convert -debug annotate -size 720x480 -background＃000 xc：black -fill white -stroke white \ -font Arial -pointsize 18 \ -draw“text 72,370'nav1'”\ -font Arial -pointsizeize 18 \ -draw“text 180,370 'nav2'“\ -font Arial -pointsize 18 \ -draw”text 430,370'nav3'“\ -font Arial -pointsize 18 \ -draw”text 550,370'nav4'“\ C：\ xampp \ htdocs \ test.bmp 
 
 
 但我收到以下错误消息： 
 
 
 
 没有图像定义'-background'@ error / convert.c / ConvertImageCommand / 325 
 

Is it possible to get somehow the width of a text which one draws in image magick?
 
My current convert command looks like this:
 
 
 
convert -size 720x480 -background #000 xc:black -fill white -stroke white \ -font Arial -pointsize 18 \ -draw "text 72,370 'NavP1'" \ -font Arial -pointsize 18 \ -draw "text , ''" \ -font Arial -pointsize 18 \ -draw "text , ''" \ -font Arial -pointsize 18 \ -draw "text 370,370 'Extras'" \ -font Arial -pointsize 18 \ -draw "text 430,370 'opt'" \ -font Arial -pointsize 18 \ -draw "text 550,370 'NavP1'" \ C:\xampp\htdocs\labelText.bmp
 
 
I did this programmatically and want to center and align the navigation points to each other based on how many navigation points I have 
 
( I get the number of navigation points from my php formular / database ).
 
Here is a little sketch of what I mean and how it should look like
 
________________________________________
|                                       |
|                                       |
|                                       |
|             navp1  navp2              |
|_______________________________________|

________________________________________
|                                       |
|                                       |
|                                       |
|         navp1  navp2  navp3           |
|_______________________________________|
 
I have a fixed width for that image (720px).
 
Thus I have a minimum number of 2 navigation points and a maximum number of 6 navigation points.
 
My thought is that if I could get the width of each Navigation (text/word) point I could calculate and align the points correctly.
 
But right know I could not find a function which does that.
 
I tried Mark Setchell Answer but my command seems to have a mistake
 
 
 
convert -debug annotate -size 720x480 -background #000 xc:black -fill white -stroke white \ -font Arial -pointsize 18 \ -draw "text 72,370 'nav1'" \ -font Arial -pointsize 18 \ -draw "text 180,370 'nav2'" \ -font Arial -pointsize 18 \ -draw "text 430,370 'nav3'" \ -font Arial -pointsize 18 \ -draw "text 550,370 'nav4'" \ C:\xampp\htdocs\test.bmp
 
 
but I get following error message:
 
 
 
no images defined '-background' @ error/convert.c/ConvertImageCommand/325
 

原文：https://stackoverflow.com/questions/37608525