NetNews Usenet Archive 1992 #19

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Text File | 1992-08-25 | 19.7 KB | 435 lines

Newsgroups: comp.sources.hp48 Path: sparky!uunet!seq!spell From: john R. Latala <John.Latala@waterloo.ncr.com> Subject: v06i025: hdg_jl - Speed/Heading Display v1.0, Part01/01 Message-ID: <1992Aug26.012259.19081@seq.uncwil.edu> Followup-To: comp.sys.hp48 Summary: fixed pointer moving scale/tickmarks Sender: spell@seq.uncwil.edu (Chris Spell) Organization: Univ. of North Carolina @ Wilmington Date: Wed, 26 Aug 1992 01:22:59 GMT Approved: spell@seq.uncwil.edu Lines: 425 Checksum: 3771461417 (verify with brik -cv) Submitted-by: john R. Latala <John.Latala@waterloo.ncr.com> Posting-number: Volume 6, Issue 25 Archive-name: hdg_jl/part01 BEGIN_DOC hdg.doc This directory contains a routine (HDG) for displaying a speed (0 - 500) and a heading (0 - 360) as two horizontal scales with pointers. The scales have tick marks and labels. Sequential updates of the screen will look like a 'moving tape' display. I wanted to make the speed display a vertical tape but that didn't work too well with the horizontal heading display. This program works by making two large GROB and cutting them up to build the display image. If the GROB don't exist then it will make them. P.S. As you can see by the first line of this posting I'm using the Program Development system for this, is that a problem for you? END_DOC [ Hdg.app won't download. I'm only including it as documentation. The asc'ed or uuencoded versions will download fine. -chris ] BEGIN_SRC hdg.app // HP 48 Program Development Link Application // /Angle Degrees /FractionMark . /InstallDir /AutoExec // /Var HDG @ @ HDG - display a heading graphically as two horizontal axis @ @ The input is a complex number. @ @ The magnitude of this polar number is displayed on the first horizontal @ axis. @ @ The angle of this polar number is displayed on the second horizontal axis. @ \Ga MHTICK MSTICK DUP ABS 500 MOD SWAP ARG 360 MOD \-> s h \<< # 83h # 40h BLANK { # 3Ah # 0h } Mark REPL { # 0h # 4h } STICK s 80 + 61 - R\->B # 0h 2 \->LIST DUP 1 GET # 82h + # 14h 2 \->LIST SUB REPL { # 3Ah # 1Eh } Mark REPL { # 0h # 22h } HTICK h 80 + 61 - R\->B # 0h 2 \->LIST DUP 1 GET # 82h + # 14h 2 \->LIST SUB REPL \->LCD 7 FREEZE \>> \>> // /Var Mark GROB 7 4 F7E3C180 // /Var MHTICK @ @ MHTICK - make the heading tick GROB @ @ Makes the GROB that contains the heading axis if it doesn't exist. @ \<< IFERR 'HTICK' RCL THEN -70 430 5 1 10 360 30 { { 90 16 } { 30 8 } { 10 4 } { 5 2 } } MTICK SWAP STO ELSE DROP End \>> // /Var MSTICK @ @ MSTICK - make speed tick GROB @ @ Makes the GROB that contains the tick marsk for the speed display @ \Ga IFERR 'STICK' RCL THEN 0 500 5 1 80 1000 50 { { 100 16 } { 50 8 } { 10 4 } { 5 2 } } MTICK SWAP STO ELSE DROP End \>> // /Var MTICK @ @ MTICK - a general purpose horizontal tick mark maker @ @ Used to make the two horizontal tick mark GROBs for the heading and speed @ @ Calling arguments: @ @ Start - starting value @ End - ending value @ Scale - magnification factor @ offset - horizontal pixel displacement where 'Start' is in the GROB @ tmod - spacing of tick marks @ lticks - positions where labels are applied to tick marks. @ Ticks - a list of two element lists that describe a possible tick @ position and the length of the tick mark @ \<< \-> Start End Step Scale offset tmod lticks Ticks \<< offset End Start - Scale * + 1 + offset + R\->B # 20d BLANK offset R\->B # 0d 2 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