Hi Miyako,
So if I understand how to replace “text” with “TextArea”…
Here’s an existing code fragment with various height/width adjustments
$fontAlign_D:=Align center
$pnt_X:=$ctr_X+(($ctr_X*$radius)*Cos($Angle))
$pnt_Y:=$ctr_Y-(($ctr_Y*$radius)*Sin($Angle))
$display_t:=$Degree+”˚” ` example: 16˚
In this example the X and Y of the point are:
inX_D=577
inY_D=276
SVG_String_WidthHeight_Get (display_t; ->$width;
->$height; $fontName; $fontSize_D; $fontStyle_D; $fontAlign_D)
` set new Y coord based upon returned height dimensions
$inY_D:=$inY_D-($height/2)
$text_svgRef:=SVG_New_text
($domSvg_ptr->;$cuspDegree+"˚";$inX_D;$inY_D;$fontName;$fontSize_D;$fontStyle_D;$fontAlign_D)
The XML looks like:
<text fill="#000000" font-family="Tahoma" font-size="14" font-style="normal"
font-weight="normal" stroke="#000000" text-anchor="middle"
text-decoration="none" x="577" y="282">16˚</text>
Notice the Y value is changed to 282. This works pretty good!
----------------------------------------------
When switched from SVG_New_text to SVG_New_textArea:
$display_t:=$Degree+”˚” ` example: 22˚
In this example the X and Y of the point are:
inX_D=577
inY_D=276
$text_svgRef:=SVG_New_textArea
($domSvg_ptr->;$display_t;$inX_D;$inY_D;$width;$height;$fontName;$fontSize_D;$fontStyle_D;$fontAlign_D)
SVG_SET_ATTRIBUTES ($text_svgRef;"display-align";"center")
SVG_SET_ATTRIBUTES ($text_svgRef;"text-align";"center”)
First issue I noticed was the degree symbol (˚) {ctrl+k} is missing. Although
the correct string is in the xml.
<textArea display-align="center" fill="#000000" font-family="Tahoma"
font-size="14" font-style="normal" font-weight="normal" height="-13"
stroke="#000000" text-align="center" text-decoration="none" width="-28" x="577"
y="276">16˚</textAre>
First notice that the Y value remains at 276???
I thought it must be an encoding issue. So I tried different characters and
none of them are being displayed.
Then I thought what if the width or height is not large enough to allow it to
display? By playing with the width I could see all the characters are there.
BUT I cannot reliably get the text centered on the point.
So then I removed the following two lines:
SVG_SET_ATTRIBUTES ($text_svgRef;"display-align";"center")
SVG_SET_ATTRIBUTES ($text_svgRef;"text-align";"center”)
And the values are exactly the same. So this code has not affect therefore I
must not be setting the attributes correctly.
Any idea as to what I am doing wrong?
Appreciate,
John...
> HI Miyako,
>
> Thanks for the info.
>
>> Ref: have you considered using <TextArea> instead of <text>?
>
> I haven’t but I will now. <grin>
>
> I’ll see if there’s a difference.
>
> Thanks for tips.
>
> John…
>
>
>> in general, it is best to instruct the rendering engine to decide how to
>> align objects,
>> rather than to compute the exact coordinates yourself.
>>
>> "text-anchor" (start, middle, end) should take care of horizontal align in
>> <text>,
>> but vertical align is going to be difficult since 4D does not support
>> "dominant-baseline" or "alignment-baseline".
>> if you decide to go down the "y" or "dy" route, well, I guess it's going to
>> be an uphill struggle.
>>
>> have you considered using <TextArea> instead of <text>?
>>
>> you have "display-align" (before, center, after) for vertical align and
>> "text-align" (start, center, end) for horizontal align.
>>
>> p.s.
>>
>> I love how they say start/end, before/after instead of left/right (because
>> of right to left scripts)
>> and decisively use middle instead of center with respect to the subject
>> (align or anchor)...
>
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