Module name: s_kappa

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Module declaration: GLOBAL GEOMETRY MODULE s_kappa

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Module description:

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Curvature analysis of surfaces

Curvature analysis cases

maxp: Maximum principal curvature directions

minp: Minimum principal curvature directions

gauss: Gaussian curvature

devan: Developability analysis

Visualization cases

R*3: On the surface (3D)

U,V: In the surface parameter plane (2D)

2006-04-16 Gunnar Liden

Algorithm

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1. Grid of lines for UV graphical representation

Create a grid of U,V lines corresponding to the number

of patches in U and V direction in the XY plane of the

selected coordinate system.

2. Curvature calculation

Calculate curvature and create geometry (lines)

showing the curvature.

Module parameters:

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REF s_id >"@t16 Select surface";

REF c_id >"@t8192 Select U,V coordinate system";

STRING kcase*10:="minp" >"Case: maxp minp gauss devan";

INT iu_d := 10 >"@ Step in U direction";

INT iv_d := 7 >"@ Step in V direction";

STRING rflag*3:= "ALL" >"@ Representation R*3, U,V or ALL";

FLOAT rleng := 70.0 >"@ Length of lines in R*3 space";

FLOAT uleng := 30.0 >"@ Length of lines in U,V plane";

INT kpen := 2 >"@ Pen (colour) for curvature lines";

INT upen := 6 >"@ Pen (colour) for U,V grid";

INT graphic:= 1 >"@ Graphic Eq 1: Lines Eq 2: ..");

No called modules

This document was created 2006-04-16 by module m_extdoc1

Module name: lofted_fuselage

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Module declaration: GLOBAL GEOMETRY MODULE lofted_fuselage

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Module description:

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Create a fuselage surface with SUR_CONIC

2006-04-15 Gunnar Liden

Algorithm

Initializations and check of input data

Module parameters:

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INT graphic:=1 >"Graphic 0: Nothing 1: Surface 2: All");

No called modules

This document was created 2006-04-16 by module m_extdoc1