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PLOTTING & GRAPHING entries in Index to How To Do It Information
Norman Lathrop Enterprises  
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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
Click on a see also (sa) or tracing (xx) to view detailed entries about a related subject.
The entries are in alphabetical order by magazine name and then in chronological sequence.
To obtain a copy of any magazine article contact your local public library or the publisher.


Some plotting comments. More discussion of the problems in designing and building a plotter using the hobby servomechanism described briefly on pages 9 and 10 of the March 1977 issue.
BYTE Feb 1978 (v.3#2) pg. 172

Hidden line subroutines for three-dimensional plotting. Algorithms developed are given in BASIC language.
BYTE May 1978 (v.3#5) pg. 49

PLOT3D: a function plotting program. A BASIC program used for three-dimensional projections into two-dimensional plots. Plots are printed on a standard ASCII printing terminal.
BYTE May 1978 (v.3#5) pg. 60

A theatrical lighting graphics package. Simple modification to a Processor Technology VDM-1 board in an 8080 based microcomputer enables the video display to illustrate five simultaneous graphs of theater lighting intensity versus time.
BYTE Jun 1978 (v.3#6) pg. 153

Build an X-Y plotter using an ETCH-A-SKETCH toy as the starting point. Some tips, but no complete instructions.
BYTE Feb 1979 (v.4#2) pg. 66

The XYZ phenomenon: Stereoscopic plotting by computer. Three-dimensional simulation using optical devices and computer graphics. Includes a North Star BASIC program for generating 3D stereo image pairs. Output the images on an analog chart recorder. Use simple optics to view the result.
BYTE Oct 1979 (v.4#10) pg. 140

Shape table conversion for the Apple II. A BASIC subroutine to automatically perform the plot conversion to hexadecimal and put the values into the shape table.
BYTE Nov 1979 (v.4#11) pg. 63

The plot continues. Description of an X-Y plotter design.
BYTE Jan 1980 (v.5#1) pg. 138

A first look at graph theory applications. Fundamental concepts of graph theory and two methods of directed-graph storage.
BYTE Feb 1980 (v.5#2) pg. 18

Convert a childs "Etch-A-Sketch" into an X-Y plotter through the addition of stepping motors and drive circuit. Includes programs written in 6502 assembler for KIM-1 computer.
BYTE Feb 1980 (v.5#2) pg. 202

Graphic color slides. Part 1. A series of useful subroutines for generating color images on a Compucolor II computer.
BYTE Nov 1980 (v.5#11) pg. 126

A general interpolating graphics package for the TRS-80. Use it to plot any analytic function. It interpolates between points of a graphed function and three-dimensional figures. Written in Level II BASIC.
BYTE Nov 1980 (v.5#11) pg. 296
Correction BYTE Jul 1981 (v.6#7) pg. 118

Graphic color slides. Part 2. Using subroutines to generate equation plots, histograms, regression and monthly analysis graphs.
BYTE Dec 1980 (v.5#12) pg. 96

Digital plotting with the Apple II computer. Hardware interface and software to drive a Hiplot digital plotter from the Apple II TTL logic, bypassing the UART.
BYTE May 1981 (v.6#5) pg. 296

Fast line-drawing routines use DDA (digital differential analyzer) algorithm.
BYTE Aug 1981 (v.6#8) pg. 414

Drawing with UCSD Pascal and the Hiplot plotter. Routines that simplify the process of drawing lines and characters on the Houston Instrument Hiplot plotter.
BYTE Oct 1981 (v.6#10) pg. 214

A BASIC plotting subroutine lets the Epson MX-80 emulate sophisticated plotters.
BYTE Mar 1982 (v.7#3) pg. 142

Diablo printer shape-table drawing program in BASIC for the Apple II computer.
BYTE Mar 1982 (v.7#3) pg. 310

Histogram generating program is written in Commodore BASIC. Included in an article describing an archaeological report generating program.
BYTE Jul 1982 (v.7#7) pg. 76

Autograph: a plotting subroutine in TRS-80 Level II BASIC.
BYTE Jan 1983 (v.8#1) pg. 381

Shape-table graphics for the TRS-80 allows you to draw complex shapes with a single command. KWIKDRAW program written in assembly language may be incorporated into a BASIC program.
BYTE Feb 1983 (v.8#2) pg. 392

A fast shape subroutine that plots high-resolution shapes on the Apple II.
BYTE Aug 1983 (v.8#8) pg. 292

Curious coordinates for computer graphics. A BASIC subroutine to convert elliptical polar coordinates of scale C to Cartesian types.
BYTE Aug 1983 (v.8#8) pg. 386

Mainframe graphics on a microcomputer. Display Tektronix-type plots on your microcomputer using this emulation program.
BYTE Oct 1983 (v.8#10) pg. 439

Make fast and simple contour plots on a microcomputer using CONDOT written in BASIC. Program contains only 57 commands.
BYTE Nov 1983 (v.8#11) pg. 487

An examination of the mathematical properties of dragon curves and a TRS-80 BASIC program to print them on an IDS Paper Tiger printer.
BYTE Dec 1983 (v.8#12) pg. 457
Correction BYTE Aug 1984 (v.9#8) pg. 40

Fitting curves to data using the Simplex algorithm. Includes a program written in Pascal/Z.
BYTE May 1984 (v.9#5) pg. 340
Added Info BYTE Oct 1984 (v.9#11) pg. 16

Cluster analysis program written in BASIC. Produces a simple, unique tree diagram (dendrogram) that shows group similarities and differences.
BYTE Sep 1984 (v.9#10) pg. 129
Correction BYTE Dec 1984 (v.9#13) pg. 34

Neuractor. Part 2. Assembling an X-Y table for drawing or computer-aided CNC (computer numerical control) machining system.
COMPUTERCRAFT Aug 1992 (v.2#8) pg. 33

Learning to use an X-Y plotter.
COMPUTERS & ELECTRONICS Mar 1984 (v.22#3) pg. 36, 104

Experimenting with computer art. Using pen plotters to generate "plotter art".
COMPUTERS & ELECTRONICS May 1984 (v.22#5) pg. 26

Creative text formating with an X-Y plotter. How to use the X-Y plotter to handle simple chores like printing brief notes, letters, labels and signs.
COMPUTERS & ELECTRONICS Mar 1985 (v.23#3) pg. 13

Creating custom characters with an X-Y plotter.
COMPUTERS & ELECTRONICS Apr 1985 (v.23#4) pg. 8

Advanced Graph. A BASIC program plots up to 4 graph lines simultaneously on the same graph.
COMPUTERS & PROGRAMMING Jul-Aug 1981 (v.21#4) pg. 46

Histogram program (bar graph program) displays from 2 to 15 pieces of data as a vertical bar graph on the TRS-80 computer. Written in BASIC.
COMPUTERS & PROGRAMMING Jul-Aug 1981 (v.21#4) pg. 47

Build this X-Y plotter for your PC and plot curves, draw circuit-board patterns, create artistic designs, etc. Stepper motors drive overlapping "tee frames" which move the pen holder.
ELECTRONICS NOW May 1994 (v.65#5) pg. 57

Program written in TRS-80 Level II BASIC will plot a graph with up to 12 horizontal coordinates and 10 vertical coordinates.
ELEMENTARY ELECTRONICS Jan-Feb 1980 (v.20#1) pg. 76

Universal graphing program. A BASIC program to transform abstract equations into tangible graphs. A utility program to plot mathematical functions.
HANDS-ON ELECTRONICS Jan 1989 (v.6#1) pg. 62

Simple BAR GRAPH PLOTTER program is written in PET BASIC. Use to display graphs on a video display.

Graphing with the TRS-80. How to plot curves on an X-Y axis. Includes a BASIC program for displaying the curves associated with mathematical formulas on a CRT.

Vector graphing techniques on a North Star computer equipped with a Merlin Video Interface board.

Subroutines use a printer as a very "course" graphics display to plot curves (functions) or data.
Added Info KILOBAUD MICROCOMPUTING Jan 1982 (v.6#1) pg. 180

Automatic selection of plotting limits. BASIC program determines the optimum limits for graphics and charts.

Graphs, plus. Five subroutines to generate curves or bar graphs. Written in BASIC.

Plotting with the Heath X-Y recorder. Tips on assembling the kit and BASIC subroutines to drive the recorder.
KILOBAUD MICROCOMPUTING #57 Sep 1981 (v.5#9) pg. 150

Normal curve plotter and calculator program is written in BASIC for the TRS-80 computer.
KILOBAUD MICROCOMPUTING #58 Oct 1981 (v.5#10) pg. 188

A/D converter program for an Apple II computer allows the computer to capture rapidly changing dc voltages and display the resultant plot on the video screen.
KILOBAUD MICROCOMPUTING Jan 1982 (v.6#1) pg. 68

Lissajous curve plotting program for the 16K 400/800 Atari.
MICROCOMPUTING Jun 1982 (v.6#6) pg. 118
Added Info MICROCOMPUTING Oct 1982 (v.6#10) pg. 149 (Applesoft version).

What you didn't know about the NEC Spinwriter. Learn how to generate matchless business graphics. Includes programs for the Commodore computer.
MICROCOMPUTING Oct 1982 (v.6#10) pg. 32

North Star BASIC program for plotting with the Okidata Microline 80 dot matrix printer.
MICROCOMPUTING Nov 1982 (v.6#11) pg. 56

The good, the CAD, and the Apple. Part 2. How to interface the Logo program to a Houston Instrument Hi Plot plotter model DMP-4.
MICROCOMPUTING #86 Feb 1984 (v.8#2) pg. 88

BASIC program for drawing bar graphs (both horizontal and vertical).
POPULAR ELECTRONICS [1] Aug 1982 (v.20#8) pg. 84

Introduction to phase-plane plots, a two- or three-dimensional plot of the amplitude versus the phase angle of some value of some physical or abstract system. Lissajous figures are one of the oldest of these plots.
RADIO-ELECTRONICS May 1989 (v.60#5) pg. 67