89b5dce9-a7cc-4f8b-8908-e9519b3e7d51 84 4 5 false false false 0 0 decimal

XYPlot - bitmapped fonts some notes

We start with a matrix with a gray scale values, 0 = black, 255 = white:

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mat :

Image component:

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 PA

XYPlot component:

Draw PA at A with κ as scale factor

A 1212 mat :

κ 0.5 :

pos A 1 el A 2 el κ PA cols 20 / * κ PA rows 14 / * stack :

image:{PA} pos 1 1 mat transparent line 1 stack 1 1 mat 1 1 mat

We can add some color in this way:

r g b 13 mat 255140013 mat :

this is dark orange, or something like that.

Color the gray value x with the color c:

c x cx 255 c - 255 / x 255 - (* 255 + trunc :

R PA r cx vectorize :

G PA g cx vectorize :

B PA b cx vectorize :

Image component:

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 R G B 1 3 mat

PAC R G B 13 mat :

image:{PAC} pos 1 1 mat transparent line 1 stack 1 1 mat 1 1 mat

XYPlot component:

Transparency: I don't know how to add transparency to the [R G B] matrix, nor in the image nor the XYPlot components. But for a single character, you can add transparency color in the native plot component as an hexadecimal, or with 4 decimals in the XYPlot component:

α 120255 / : 0.4706

Color with transparency as one hexa and decimal number:

x d2h.2 n h 0123456789ABCDEF n trunc 1 + 1 substr : x x 16 mod - 16 / h x 16 mod h concat 21 line :

CLR # 255 α * d2h.2 r d2h.2 g d2h.2 b d2h.2 concat : #78FF8C00

clr d b 162^g * + 164^r * + 166^255 α * trunc * + : d 232^2 d * 232^1 - ≥ (* - 21 line : 2030013440

That's what rgb function do:

C a rgb A C 3 el C 2 el C 1 el 255 a * 14 mat : k Clear 12 mat d 0255 A k el trunc 12 mat min 12 mat max 162 k 1 - (*^* k 14 sum : d 232^2 d * 232^1 - ≥ (* - eval 31 line :

r g b a rgb r g b 13 mat a rgb 11 line :

r g b α rgb 2030013440

See also: https://en.wikipedia.org/wiki/RGBA_color_model

Native SMath plot and XYPlot

XYPlot'Traces#0'FillStyle'FillColor clr num2str :

XYPlot'Traces#0'FillStyle'Filled True :

255 α * r g b 14 mat 120255140014 mat

x sin 1 - 0 0 █ 40 CLR augment 2 1 sys x sin 1 - 0 0 █ 40 clr augment 2 1 sys

How can we use that for show text in XYPlot? I don't know. Maybe we can ask to Viacheslav to show a matrix with values between -2^32 and +2^32 as a colored one, instead a gray scale.

But we can draw the text by squares, avoiding the whitest colors

X r c κ pos X 1 el κ 20 / c * + X 2 el κ 14 / r * + κ 20 / κ 14 / stack :

x clr r x cx g x cx b x cx 1 rgb :

txt 0 :

k 0 :

r 1 PA rows range c 1 PA cols range PA r c el 250 < txt k k 1 + : el rect A PA rows r - c κ pos 1 PA r c el clr 61 mat : if for for

XYLabel'XLabel:"", XYLabel'YLabel:""

x 1.2 + x 1.0 + x 0.8 + txt 1 1 mat 4 1 sys

where ["rect", [a; b; w; h], ... ] draws a rectangle with diagonal from (a,b) to (a+w,b+h)

Alvaro

4 appVersion 1.73.9126.0