Revit bezonningsanalyse

From TOI-Pedia

Introduction

This article is a continuation of the Getting Started with Revit Architecture and the Documenting a Project (Revit Architecture) tutorials.

We cover creating perspective renderings and a solar study (image and movie) of your project.

3D Graphic Display Options

There are various ways of displaying your 3D Revit model. These range from simple outlines to materialized previews and near photo-realistic renderings with shadows.

It's recommended to create a new 3D view (Camera) for each image you want to create from your 3D model.

  1. Open the Site view
  2. In the Ribbon, open the View tab. In the Create panel, click the arrow under 3D View and click Camera.
  3. Click in the drawing area where you want to place the camera itself
  4. Click to place the camera target point (usually somewhere in or near your building)
  5. Open the new camera 3D view.


Use the buttons in the View Control Bar to configure various visual styles:

note that the actual appearance of each icon will depend on the selected configuration, especially for the visual style icon

Revit 2011 Wireframe icon.png Visual Style (second icon)
Wireframe, Hidden Lines, Shaded, Shaded with Edges, Consistent Colors or Realistic
Revit 2011 Shadows icon.png Shadows (fourth icon)
Enable or disable shadows. Not available in Wireframe and Consistent Color visual styles
Revit 2011 Rendering icon.png Rendering (fifth icon)
Create a 'photorealisitc' rendering of this view

3D view with section

Example of the application of a Section Box in 3D

You can display any section of your model in a 3D view, as the example right shows.

  1. Open the 3D view you want to create a section in. Select this view, so its properties are shown in the Properties Palette.
  2. Find the Section Box property in the list and enable it.
  3. A box appears around your model. When you select it, blue arrows appear that can be used to change the height, depth and length, creating sections where your model is outside the box.
  4. To rotate the box, locate the small rotate arrow at one of the top corners of the box Revit 2011 Section Box Rotate handcle.png.


Location

Location Lange Voorhout, Den Haag

When you create a project it is possible to specify the geographic location using the street address or the latitude and longitude. This is useful for generating location-specific shadows for views that use them, such as solar studies and walkthroughs. The location provides a basis for weather information, which is used during energy analysis.

To specify the project location, Click Manage tab > Project Location panel > Location. You can also access this dialog from the Energy Settings dialog. When your computer is connected to the Internet this dialog displays an interactive map through the Google Maps mapping service.

Until you specify a different project location, the location is set to the longitude and latitude of the major city specified by Revit for your locale.

For the Project Address, enter the street address, city and country. Enter: Lange Voorhout 74, 2514 EH Den Haag.


Use the following tools to adjust the map as needed:

  • Pan. When you place the cursor over the map, the cursor changes to a hand, and you can drag the map to pan the view.
  • For Zoom, Click + (Zoom in) or - (Zoom out), or drag the zoom slider to adjust the zoom level.
  • Map. Shows street map.
  • Satellite. Shows satellite imagery.


Creating a Solar Study

In this exercise, you create an animation of the solar activity at a particular place and time in order to study the light and shadows that affect the building site.

First we create a new camera.

  1. Open the Site view
  2. In the Ribbon, open the View tab. In the Create panel, click the arrow under 3D View and click Camera.
  3. Click in the drawing area where you want to place the camera itself
  4. Click to place the camera target point (usually somewhere in or near your building)
  5. Open the new camera 3D view.
  6. You may want to use the Navigation Wheel to fine-tune the position of your camera

Now we can set this view to create a Solar Study.

  1. On the View Control Bar, click Revit 2011 Visual Style icon.png (Visual Style) and in the pop-up click Graphic Display Options.
  2. In the Graphic Display Options dialog:
    • Under Shadow, verify that Cast Shadows is selected
    • To control the Shadow contrast, you may change the Shadow value under Lighting. The default is 50, lower values result in smaller contrast between bright and shadow areas. Set it to 30 for now.
  3. On the View Control Bar, click Revit 2011 Sunpath icon.png (Sun Path) and in the pop-up click Sun Settings.
  4. In the Sun Settings dialog, select Single Day.
  5. In the Settings column, for Location, click the ... button to select a location. Type the name of the town or city to locate it on the map. Click OK.
  6. Select a date and time.
  7. For Time Interval, select 15 minutes.
  8. Click the Save Settings button and specify a name for these settings as a preset. Click OK
  9. Click OK.
  10. On the View Control Bar, click Revit 2011 Sunpath icon.png (Sun Path) and select Sun Path On.
  11. On the View Control Bar, click Revit 2011 Sunpath icon.png (Sun Path) again and select Preview Solar Study.
  12. On the Options Bar, click Play.

The solar study animation is displayed, showing the progression at 15-minute intervals for the location and date specified.

Save Solar Study as a movie

To export the animation to a movie:

  1. Click The Revit Application Button, Export, Images and Animations, Solar Study.
  2. Depending on the time range and interval, you may have to change the Frames/sec setting to something suitable. Your animation shouldn't be too fast, nor too slow.
  3. For the Dimensions, choose a width of 1024 for a medium resolution movie.
  4. Click OK.
  5. In the Export Animated Solar Study dialog, click a suitable location, and click Save. (saving your movie as an AVI file)
  6. In the Video Compression dialog, for Compressor, select Full Frames (Uncompressed), and

click OK.

The animation is played again as the AVI file is saved.


Use Solar Study as a single image

  1. On the View Control Bar, click the Sun Path icon and select Preview Solar Study.
  2. Use the Next Frame and Previous Frame buttons in the option bar to select the frame that corresponds to the time you want to view in your Solar Study
  3. You can use the view to incorporate in a sheet, or
  4. Click The Revit Application Button, Export, Images and Animations, Image to save the current view as an image.

Rendering

You can create Photo-realistic representations of your 3D views using the render option Revit 2011 Rendering icon.png. This generates an image of your 3D view. The Rendering Dialog allows you to configure the result, setting image size, quality, lighting options and exposure.


When you make renderings, you need to make sure the resolution (number of pixels) of the image is sufficient. You set the size of the image (in mm) and choose a sufficient resolution (pixels per inch):

  • Select the Crop Region of your 3D view. Use the buttons in the View Control Bar to make it visible when it's hidden.
  • On the Modify Tab, Crop Panel, click Revit Size Crop.png (Size Crop)
    Revit Crop Region Size.png
  • When you want to keep the current proportions and crop, choose Scale. When you want to change the crop or proportions, choose Field of View.
  • Enter the size you want for your image (on you Sheet or poster) in mm.
  • Click OK

When that has been set correctly, you can choose a resolution in the Rendering Dialog:

  • For Output Settings, Resolution, choose Printer
  • Set the resolution to 150 DPI. This is sufficient for all printing purposes.


When you're rendering for a presentation on a projector, change the DPI settings to a value so that the width x height (in pixels) is around 1280 x 1024.


High-quality, high-resolution images can take a long time to render. When you have an Autodesk Subscription account or an Autodesk Student account, you could consider using the Autodesk 360 Rendering Cloud Service.

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