1. Copy and Paste (Clipboard)

It's the quickest way to insert an image.

How to

1. Localise the image in File Explorer
2. First Ctrl + C
3. At LusoCAD, first Ctrl + V

What's happening

The behaviour depends on the image source:

• If you copy the file directly, it may be treated as an external reference.
• If you copy from tools like Snipping Tool or Paint, the image may become embedded.

When to use

• Quick references
• Temporary jobs
• Early stages of the project

It's a practical method, but not the most suitable for structured work.

2. Raster Image Reference

IMAGEATTACH it is the most recommended method for professional work.

How to use the command

Write

IMAGEATTACH

Then:

1. Choose the image
2. Definition of insertion point, scale and rotation
3. Configure the file path type

You can also access it via the tab Insert Raster image.

Advantages

• The image stays on externally, keeping the file light
• Allows for precise control of position and scale
• Integrates well with layers and project organisation

Definição importante: tipo de caminho

Always choose:

• Relative path

This avoids problems when:

• Move the project's pasta
• Share files with colleagues

When to use

• Base plants
• Location maps
• Images that require precise scaling

3. OLE Object (Command: INSERTOBJ)

This method inserts the image directly into the DWG file.

How to use the command

Write

INSERTOBJ

Then choose:

• Create new
• Create from file

What distinguishes it

• The image is fully embedded
• It does not depend on external files
• The DWG becomes standalone

Points to consider

• Increase file size
• Less control compared to raster references
• Less flexible for precise adjustment

When to use

• Logos
• Technical documentation
• Files that need to be shared without external dependencies

4. Arrastar e Largar (Drag and Drop)

A simple and intuitive method.

How to

• Drag the image from File Explorer directly onto the LusoCAD drawing area

What's happening

In most cases, the image is inserted as an external reference, similar to IMAGEATTACH.

When to use

• Rapid tests
• Initial positioning
• Visual inspection

Even though it's fast, it's advisable to adjust the scale afterwards.

Helpful Tips When Working with Images

Control image outline

Utilise the variable:

IMAGEFRAME

Options:

• 0 Hide outline
• 1 Show and print the outline
• 2 – Shows the outline but doesn't print

The option 2 is usually the most practical.

Adjust the scale correctly

After inserting the image:

1. Write

SC

1. Select the image
2. Use a known measure to adjust the scale

Fundamental for digitised plants.

Improve performance

Heavy images can make drawing slow.

Best practices

• Use JPG or PNG
• Resize images before inserting
• Avoid incorporating when not necessary

Resolve missing images

If the image disappears or appears blank:

1. Open

XREF

1. Check the file path
2. Re-associate the image, if necessary

Quick comparison

Final Recommendation

In most cases LusoCAD, the best option is to use IMAGEATTACH with relative paths. Guarantees lighter, organised and trouble-free files when sharing.

The remaining methods are useful in specific situations, but for consistent and professional work, raster image reference remains the safest choice.