3draymodelsmodule_1.1

8/9/2019 3DRayModelsModule_1.1

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OMNI 3D W ORKSHOP - 3D R AY M ODEL M ODULE EXERCISE 1.1

3D Ray Models Module Create from Grid DataThis exercise requires OMNI 3D Workshop and a Grid file.

Open an existing project or create a ne project ith the projection s!ste" corresponding to the Gridarea.

Create a 3D Ray ModelWith the Grid centered in the #dit $ie % cop! the coordinates of a point so"e here in the &outh'Westcorner.

In the (roject Tree% right'click on 3D Ray Models | Create NEW Model .

) dialog opens here !ou can na"e the "odel and sa*e it. ) second dialog opens pro"pting for a +ingrid definition. The "odel needs to co*er at least the area of the sur*e! +in grid% +ut can +e larger. )ll

para"eters in this dialog are "easured in the project,s "ap units -feet or "eters .

Bin Length#nter /012 in +oth text +oxes% and check Loc

Grid !rigin(aste the copied coordinates

"otal Grid Length#nter /01112 for the #n$line length and /01112 for the %$line length

Grid #n$line &'imuth#nter / 12 and check Loc

Grid !rigin !ffset4ea*e the default *alues. -1

Centre (tations on Bin4ea*e the default *alues

(ress )inish

The na"e of the ne "odel appears in the (roject Tree under 3D Ray Models .

Geophysical Exploration & Development Corporation1200, 815 8 th Avenue !"! Cal#ary, A$ %2 ' 2 Cana(a

%el) *1+ 0'- 2.2/5 80 ax) *1+ 0'- 2.2/8.'2 E/mail) in o3#e(co!com

444!GEDC !com
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Bin Grid Wi'ardThe 5in Grid i6ard is used to position the +in grid in the #dit $ie . It is onl! accessi+le +eforehori6ons are created. If the grid needs to +e adjusted after hori6ons ha*e +een added% the! need to +edeleted then recreated after the +in grid has +een repositioned.

7ight'click on the na"e of the 3D Model and select Bin Grid Wi'ard .

8hange para"eters to9#asting9 : ;311

Northing9 < 11

Nu"+er of 5in Grids In'4ine9 >11 Nu"+er of 5in Grids ?'4ine9 >11

5in Grid &i6e In'4ine9 >115in Grid &i6e ?'4ine9 >11

Controls(an grid9 click an! here ithin grid area or on corner ith circle% click @ drag&tretch idth or length of grid9 hold "ouse o*er an! long edge of grid% click and drag7otate grid9 hold "ouse o*er an! corner ith square% click and drag

AGeophysical Exploration & Development Corporation

1200, 815 8 th Avenue !"! Cal#ary, A$ %2 ' 2 Cana(a %el) *1+ 0'- 2.2/5 80 ax) *1+ 0'- 2.2/8.'2 E/mail) in o3#e(co!com

444!GEDC !com


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Create *ori'ons)rom )ile7ight'click on the "odel na"e in the (roject Tree. &elect *ori'ons | Create Ne+ . In the first dialogchange the Bori6on Na"e to /&urface2.

( $elocit! C >311& $elocit! C >A117ho C >.1111

Rotate)ngle9 31

Center#asting9 >1111

Northing9 >1111

5asic rules for +uilding hori6ons in OMNI 3D9>. The +in grid "ust +e equal in area or larger than the proposed sur*e! di"ensions.A. Bori6ons "ust +e at least >1 "ap units *erticall! apart.3. #ach hori6on is a single'*alued surface% ith one ele*ation for each coordinate.:. In the (roject Tree% the hori6on order progresses do n starting ith the shallo est hori6on.

The deepest hori6on is the +otto""ost hori6on.0. The "axi"u" nu"+er of hori6ons per OMNI 3D project is >;.

3D View Navigationoo" $ie 9 left'click in $ie % hold and drag up or do noo" ')xis9 hold the ke!% left'click in $ie % hold and drag up or do n

7otate9 hold the 8trl ke!% left'click in $ie % hold and drag

(an -"o*e 9 hold the &hift ke!% left'click in $ie % hold and drag

Display7ight'click in the #dit $ie and select &t!le.&et options to +e9

)xes 5ehind O+ject4ighting9 :0

#nde.endent &ssignment/8reate a hori6on fro" an ?E file or Grid file. Note here the hori6on is in the (roject Tree in relationto the other hori6ons. $ie the 3D Model ith all three hori6ons in the 3D $ie . What happens hen

the hori6on is not in the correct position in the (roject Tree -order doesn,t "atch the ele*ation order F

&et the hori6on to +e clipped +! the upper hori6ons.

-A011% >A01% A.>

:Geophysical Exploration & Development Corporation

1200, 815 8 th Avenue !"! Cal#ary, A$ %2 ' 2 Cana(a %el) *1+ 0'- 2.2/5 80 ax) *1+ 0'- 2.2/8.'2 E/mail) in o3#e(co!com

444!GEDC !com

3draymodelsmodule_1.1

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