LOGICAL ISSUES AND CONSIDERATIONS IN COMPUTER AIDED DESIGNING - ALEESHA

Interior design course in chennai part time
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Various possible issues and considerations are discussed below. A. How Non-Professionals Benefit the use of Landscape Designing Tools Although many landscape professionals are employed in the landscaping industry, several individuals do their landscaping as a leisure activity. Today, computers and computer based systems have increased with a wide range of capabilities along with its technical complexity [11]. Therefore, the question that arose is, non-professionals who are new to these complex softwares would not understand to use them since a high level of complexity is involved and also they do not have a basic knowledge about landscaping. Hence, these non-professionals meet with many doubts. To address this issue, we can use the critiquing approach. Critiquing approach is a way of making use of the computer’s knowledge base to aid end users and support in learning [11] followed by an intelligent user interface [25]. However, critiques do not need the end user to formulate questions but rather it is displayed at certain levels when end users get jammed [10]. B. How 2D Drawings Can Be Converted to 3D Models Many of the architectural-aided software tools are limited to the capacity of drafting plan views in 2D [19]. Therefore, with the emerging technologies such as VR, Mahmoud indicated in [23] that architectural aided design softwares are rapidly evolving from 2D drafting to 3D building simulators and thus, the traditional landscape designers do not have a method of converting the existing 2D plan into 3D models. According to researches done in this regard, it is mentioned that although the conversion is possible [19] [41], converting such 2D drawings to 3D models is complex [41]. However since most of the landscape designers are using CAD tools such AutoCAD [32], its file format namely, AutoCAD Drawing (DWG) and other file formats such as Data exchange format (DXF) can be converted to 3D models [41]. Among the majority, few teams are still dealing with architectural drawings. Therefore, 2D architecture drawings can be converted to 3D buildings followed by first extracting it them to 2D models using graphic recognition algorithms used for image processing [8]. C. How Real World Scaling is done for Architectural Plans Even though technological innovations have introduced landscape designers to work in 3D, in terms of realism in virtual landscapes [18], many have faced with spatial scaling issues [38]. Therefore, In order to achieve a higher level of realism, scaling is considered as one of the important aspects. However, in traditional ways of drawing architectures, it is drawn with the scale of 1/50 or 1/100 which provides sufficient information [1]. In this way, these suggestions can be taken as an approach to have this sort of scaling in a novel solution.

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This paper starts by delving into a motivational example with regard to the importance of a 3D CAD tool and then continues to the problem domain explored. Information evaluated has been structured into three broad areas to improve readability. First, gardening and landscaping process was explored in order to further understand the problem domain and the business process involved. Importance and the use of gardening, the process of landscaping, the types of design factors involved as well as a list of important details that should be included in a plan is discussed. However, from the process of gathering a client’s requirement to the point of estimating the cost for a garden is explored and evaluated in this section. Next, various approaches and technologies used were evaluated by categorizing these into 2D and 3D CAD tools. Thus, “Kammb Virtual Landscape Designer”, “Garden planner”, “GardenCAD”, “Floorplanner” and “Homestyler” 2D based CAD tools were evaluated and in summary, it was found that various 2D CAD tools were lacking a 3D visualization of the garden design as well as the use of 3D models and costing mechanisms. Although some tools have numerous advantages of being web tools, decrease of response time for higher number of items used as well as the internet bandwidth were considered as drawbacks. It was also noted that unique features like designing according to ISO standard scales and critiquing methods were also incorporated in some 2D based tools. Furthermore, “Google Sketchup”, “Unity3D”, “VRCAD system”, “ASPECT Studios 3D Viewer”, ‘Sweet Home 3D” and “AutoCAD were evaluated in order to explore advantages and limitations over 2D based solutions discussed above. It was found that many solutions consume high-end PC requirements, commercial products whilst some benefits real time rendering, compatibility of 3D models and 2D designing as well. In order to further evaluate the use of technologies that support virtual reality, eight different technologies were evaluated including popular 3D engines such as Sandy3D, Papervision3D and Away3D. The use of hardware acceleration, compatibility of 3D models and the support of community as well as proper documentation were strongly evaluated as it would be valuable suggestions for an ideal solution. Next, logical issues and considerations were discussed in order to overcome issues such as scaling, 2D to 3D mapping and addressing how a non-professional would benefit these suggestions in a novel approach. It is strongly believed that the way forward is through developing a framework that should encompass 2D based designing which would show a 3D visualization of the garden by supporting 2D textures and 3D models, scaling mechanisms and cost estimation of the garden. In comparison to other CAD and current tools in the market, this would give a new opportunity to use the tool to bridge the gap between the client and landscape designer in a business scenario, reduce 3D knowledge required as well as it would enable end users to design the garden themselves with a consultation of a landscape designer.
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